There are numerous ways that advertisers can be overcharged for their advertising. For example, click fraud occurs when a publisher or third parties click (manually or through automated means) on a CPC ad with no legitimate buying intent.[80] For example, click fraud can occur when a competitor clicks on ads to deplete its rival's advertising budget, or when publishers attempt to manufacture revenue.[80]

Outlook’s Contact Group option can make blasts quicker and more accurate. You create a list by clicking the “People” link, then clicking the “Actions” menu. Choose “New Contact Group,” type a name for the group such as “Customers,” and click “Select Members” to pick and choose the people who should be in your group. Click “Save & Close” when the Contact Group setup is complete.

Unsubscribe rate. Unsubscribes are always going to happen no matter what, and that’s usually OK because those people probably would never have bought from you anyway. However, a high unsubscribe rate can indicate that you are losing potential customers. Check the following: Why did people subscribe to your list in the first place, and are you delivering on that promise? Is the content of your autoresponder highly relevant to the segment it is being sent to? Are you sending too many sales emails with too little value emails?
If your average meal price is $20 – you may consider sending a coupon for 25% off of their meal. This seems great but if you instead use psychology in your offer, it will get a much better response. So instead of 25% off, make the coupon for $5 meal bucks or something similar. Instead of saying you have to spend money to redeem this coupon, you are saying this coupon is worth $5. Period. This is free money. You will see a much greater response.
Game advertising - In-Game advertising is defined as "inclusion of products or brands within a digital game."[50] The game allows brands or products to place ads within their game, either in a subtle manner or in the form of an advertisement banner. There are many factors that exist in whether brands are successful in their advertising of their brand/product, these being: Type of game, technical platform, 3-D and 4-D technology, game genre, congruity of brand and game, prominence of advertising within the game. Individual factors consist of attitudes towards placement advertisements, game involvement, product involvement, flow or entertainment. The attitude towards the advertising also takes into account not only the message shown but also the attitude towards the game. Dependent of how enjoyable the game is will determine how the brand is perceived, meaning if the game isn’t very enjoyable the consumer may subconsciously have a negative attitude towards the brand/product being advertised. In terms of Integrated Marketing Communication "integration of advertising in digital games into the general advertising, communication, and marketing strategy of the firm"[50] is an important as it results in a more clarity about the brand/product and creates a larger overall effect.
No matter how effective the subject line you’ll always have subscribers who don’t open it for a variety of reasons. Send your email again specifically targeting a list segment of those who didn’t open the first time around. Not only is this a second chance in case they just missed the first email, it’s another opportunity to further split test subject lines as well as send times. 

In practice, Internet marketing will include the use of a company web site in conjunction with online promotional techniques described in Chapter 8 of the book such as search engine marketing, interactive advertising, e-mail marketing and partnership arrangements (affiliate marketing) with other web sites. Some businesses who "want to be top in Google", simply consider Internet marketing to simply equate to Search Engine Marketing, but while this is important this scope is too narrow to take full advantage of digital media.


When planning a direct mail campaign, don’t forget that you still need to follow the basic direct mail rules. A good list, a good design and a strong call-to-action are a must in order for your direct mail to be a success. Provide information on how people can use the technology you are including and strong content for them to view. If the content is not well designed, then your effort will have been a waste of time.
Great article here. Pls. I’m a little bit confused. All I just need is a vendor that has a Landing page feature, allows for autoresponder, allows for promotion of genuine mlm and affiliate business, and cost effective for beginner. I tried Mailchimp but got suspended just within two weeks with them, and the customer care pretty bad and arrogant. Please advice
Presentation is everything, or so they say. With this old adage in mind, we’ve compiled our best tips for anyone who wants to send emails that subscribers click into a handy email design guide. We cover each facet of design: content, templates, identity, color, images, layout, fonts, and calls to action. Design is as much science as it is art, and we take the guesswork out of what can seem like the most challenging part of sending good emails.

A good email blast or newsletter has a professional email signature at the end. Email signatures are not only compliant with CAN-SPAM laws but they also provide a quick and effective way for the recipient to contact you, find your social media profiles, and engage with your business. Email signatures make email blasts more effective for businesses. Check out this blog post for examples of email signatures for you and your business.
The downside of Every Door Direct Mail Service is that, besides the location of the recipient, you don’t know anything else about them. If you would like to be able to further target the recipients based on other factors, then you will need to rent a third party mailing list. There are many places where you can go to purchase third party list that is tailored to your specific need. Experian, DirectMail, and InfoUSA being some of the more popular options.

The downside of Every Door Direct Mail Service is that, besides the location of the recipient, you don’t know anything else about them. If you would like to be able to further target the recipients based on other factors, then you will need to rent a third party mailing list. There are many places where you can go to purchase third party list that is tailored to your specific need. Experian, DirectMail, and InfoUSA being some of the more popular options.
If you haven’t yet started building an email list (but know you need to), this article is for you. You may have heard that a strong email list is one of the most valuable assets you can have, but when you’re starting from scratch, it’s easy to feel overwhelmed. This is partly because many business owners have a hard time envisioning the long-term payoff for the hard work they need to do now.
Electronic mail , often abbreviated as email or e-mail , is a method of exchanging digital messages, designed primarily for human use.. An electronic mail message consists of two components, the message header , and the message body , which is the email's content. The message header contains control information, including, minimally, an originator's email address and one or more recipient addresses. Usually additional information is added, such as a subject header field.. E-mail systems are based on a store-and-forward model in which e-mail computer server systems accept, forward, deliver and store messages on behalf of users, who only need to connect to the e-mail infrastructure, typically an e-mail server, with a network-enabled device (e.g., a personal computer) for the duration of message submission or retrieval. Rarely is e-mail transmitted directly from one user's device to another's. Wikipedia
Consider sharing the focus of the email between the call to action you want from your user and offering them something like a discount, early access to a new product, or a free trial period for subscription-based services. Get creative here. Give serious thought to what your customers will find valuable. No one knows their needs better than you and don’t be scared to do some research into what they’d want.
But before any of you young guns scoff and discount the idea of a mail marketing campaign, you might want to read through this blog entry. Direct mail, while certainly a dinosaur in the world of marketing, can still be a powerful weapon in your arsenal – if it’s done correctly and intelligently, of course. We’ll lay out a few broad tips for you to consider if carrying out a direct mail campaign. While we would still urge the majority of business owners toward a more electronic/Internet based marketing strategy, you can still get solid results from direct mail.
Once your list is targeted, you need to spend an equally large portion of time coming up with a great deal – even if it means you might lose a bit of money on it. The underlying goal of any marketing campaign is to gain new customers, and it’s worth it to significantly reduce your profit margins to gain said customers. Once you have a surgically-honed list and an amazing offer, then you can spend some time on the design, copy, delivery methods, postage rates, date of delivery, size of the mailer…there are a lot of other options to consider, but following the 40/40/20 rule you can see how important audience and offer truly are.
Email marketing is one of the most cost-effective ways to promote your business, whether your goal is to build your brand or sell more stuff. Our field guide provides everything you need to know to make the most of this platform. Learn how to create an email marketing plan, design effective emails, and test them. Then discover the power of automation and how to measure the success of your emails.
Email blast is one of the most popular methods you can use to promote products and services online. It is an email sent to a large subscribers list and its biggest advantage is its speed and reach. As if that wasn’t enough, email blast programs can be designed in HTML so you can increase brand recall by using the right colors, logos and a look that is similar to your own website. Best of all, you can even conduct online surveys and polls in your email blast to get an idea of what customers think of your offerings.

Advertisers have a wide variety of ways of presenting their promotional messages, including the ability to convey images, video, audio, and links. Unlike many offline ads, online ads also can be interactive.[18] For example, some ads let users input queries[69] or let users follow the advertiser on social media.[70] Online ads can even incorporate games.[71]
A good email blast or newsletter has a professional email signature at the end. Email signatures are not only compliant with CAN-SPAM laws but they also provide a quick and effective way for the recipient to contact you, find your social media profiles, and engage with your business. Email signatures make email blasts more effective for businesses. Check out this blog post for examples of email signatures for you and your business.

Using an omni-channel strategy is becoming increasingly important for enterprises who must adapt to the changing expectations of consumers who want ever-more sophisticated offerings throughout the purchasing journey. Retailers are increasingly focusing on their online presence, including online shops that operate alongside existing store-based outlets. The "endless aisle" within the retail space can lead consumers to purchase products online that fit their needs while retailers do not have to carry the inventory within the physical location of the store. Solely Internet-based retailers are also entering the market; some are establishing corresponding store-based outlets to provide personal services, professional help, and tangible experiences with their products.[24]

A common example of permission marketing is a newsletter sent to an advertising firm's customers. Such newsletters inform customers of upcoming events or promotions, or new products.[11] In this type of advertising, a company that wants to send a newsletter to their customers may ask them at the point of purchase if they would like to receive the newsletter.
Because users have different operating systems, web browsers[84] and computer hardware (including mobile devices and different screen sizes), online ads may appear to users differently from how the advertiser intended, or the ads may not display properly at all. A 2012 comScore study revealed that, on average, 31% of ads were not "in-view" when rendered, meaning they never had an opportunity to be seen.[85] Rich media ads create even greater compatibility problems, as some developers may use competing (and exclusive) software to render the ads (see e.g. Comparison of HTML 5 and Flash).
Display advertising - As the term infers, Online Display Advertisement deals with showcasing promotional messages or ideas to the consumer on the internet. This includes a wide range of advertisements like advertising blogs, networks, interstitial ads, contextual data, ads on the search engines, classified or dynamic advertisement etc. The method can target specific audience tuning in from different types of locals to view a particular advertisement, the variations can be found as the most productive element of this method.
Launch Outlook and click the “New E-mail” button. Click the “To” button and, if necessary, choose an address book. From here, choose your blast recipients, which appear in alphabetical order. Press and hold down the “Ctrl” key, then click once on each person that you want to include in the group. If you’d rather do a blind blast -- where recipients can’t see each others' names -- add one name to the "To" field, then click the “Bcc” field and add the recipients here instead, then click the “OK.”
Third-party companies also compile and sell contact information to companies and organizations. Customer surveys, public records, retail reports, and data software can all be used to collect demographic trends; other companies use only permission-based lists. These companies can usually narrow their mailing lists by demographic—for instance, to only working mothers who have children under three, with at least a bachelor’s degree, who own their own homes, have at least one credit card, a credit score of more than 560, and make $50,000 or more a year. Companies purchase these demographic lisst, and send their direct mail offers to this very targeted market.
With brands using the Internet space to reach their target customers; digital marketing has become a beneficial career option as well. At present, companies are more into hiring individuals familiar in implementing digital marketing strategies and this has led the stream to become a preferred choice amongst individuals inspiring institutes to come up and offer professional courses in Digital Marketing.
Thanks for the warning re ESPs, spam traps & spam treatments Crystal. That’s a shame. Who puts the Spam trap in there & I wonder what they’re trying to achieve? The clients I have already picked up with this purchased list may save our business. As mentioned, at $250-$500 per lead through our SEO campaign, this lead acquisition rate was unsustainable. In brief, this would not be a business. But at $13.75 per lead through the purchased cold email list, those are metrics which make a profitable business. I wonder why anyone would try to block this efficiency with Spam traps? Thanks for your time to help.
Molly K. McLaughlin is a New York-based writer and editor with more than a decade of experience covering technology. She has tested and reviewed all sorts of software, mobile apps, and gadgets. Before launching her freelance business, she was an editor at PC Magazine, covering consumer electronics, followed by a stint at ConsumerSearch.com, a revie... See Full Bio
We guarantee accurate and up-to-date, premium contacts in our business mailing lists. We have developed the world's most innovative real-time online list-builder tool using our very own data intelligence algorithms and qualified data sources. Enjoy the safety and security of our proprietary tool. With just a few easy steps, you'll have targeted email lists ready to be fed into your computer systems and CRM software. One product can serve multiple functions: You can use the file as a mailing list, an email database, and a simple directory of highly qualified business professionals in any industry. Buying direct marketing information from Bookyourdata.com is simple. You'll get an all-in-one, premium database full of targeted sales leads that can be marketed to right away by phone or computer. Get started now to connect with real businesses today!   -- CEO, Gary Taylor https://neilpatel.com/wp-content/uploads/2013/06/1.jpg
Someone voluntarily gives you their email address either online or in person so you can send them emails. They may pick certain types of email content they wish to receive, like specifically requesting email alerts when new blog posts are published. Opt-in email addresses are the result of earning the interest and trust of your contacts because they think you have something valuable to say.
Enhancing the Value of Mail: The Human Response, sponsored by the U.S. Post Office, used eye-movement tracking and biometric measurements such as heart rate and respiration to gauge attention and emotional engagement with both digital and direct mail. It then used magnetic resonance imaging to capture participants' brain activity when asked to recall a particular ad.
Direct mail is a type  of direct marketing in which businesses send letters, postcards or other promotional materials to past, current or potential customers or clients. Direct mail campaigns may be targeted to either a consumer or business or both.  In many cases, the mailing is directed to a target demographic (i.e. home owners) or geographic market (i.e. a specific neighborhood). In most cases, it's mass or bulk mailing, but you can send direct mail in smaller quantities as well.
Did you know there are organizations dedicated to combating email spam? Thank goodness, right? They set up a little thing called a honeypot, which is a planted email address that, when harvested and emailed, identifies the sender as a spammer. Similarly, things called spam traps can be created to identify spammy activity; they're set up when an email address yields a hard bounce because it's old or no longer valid, but still receives consistent traffic. Fishy, eh?
A trick banner is a banner ad where the ad copy imitates some screen element users commonly encounter, such as an operating system message or popular application message, to induce ad clicks.[34] Trick banners typically do not mention the advertiser in the initial ad, and thus they are a form of bait-and-switch.[35][36] Trick banners commonly attract a higher-than-average click-through rate, but tricked users may resent the advertiser for deceiving them.[37]
Online marketing platform (OMP) is an integrated web-based platform that combines the benefits of a business directory, local search engine, search engine optimisation (SEO) tool, customer relationship management (CRM) package and content management system (CMS). Ebay and Amazon are used as online marketing and logistics management platforms. On Facebook, Twitter, YouTube, Pinterest, LinkedIn, and other Social Media, retail online marketing is also used. Online business marketing platforms such as Marketo, Aprimo, MarketBright and Pardot have been bought by major IT companies (Eloqua-Oracle, Neolane-Adobe and Unica-IBM).
Publishers can offer advertisers the ability to reach customizable and narrow market segments for targeted advertising. Online advertising may use geo-targeting to display relevant advertisements to the user's geography. Advertisers can customize each individual ad to a particular user based on the user's previous preferences.[27] Advertisers can also track whether a visitor has already seen a particular ad in order to reduce unwanted repetitious exposures and provide adequate time gaps between exposures.[72]

Be aware from January the popup opt in is going to decimate your Google search rankings, so the evergreen welcome mat and overlay (which you’re using on this page on exit intent) are going to be things of the past (unless you want to lose your position in the SERPS…). Time to get rid of the popups now and move to content upgrades inline in your articles (which you do really well in this post!).
The best time to send an email blast depends a little on the best time you think your recipients would like to receive it. Most business contacts receive an average of 75 emails per day. To make sure they have the time to review (and hopefully, read) your email, try to have your email blast arrive on Tuesday Mornings between 8am and 11am. Mondays (especially after holidays) is typically a day where most contacts are catching up on email from the weekend. Fridays are difficult, as most contacts are wrapping up work from the week and may not have the time to look at your message. Even if they do find time to read it, they may have forgotten about you, and your message, by the next Monday. If Monday is a holiday, time your email blast to arrive on a Wednesday Morning after the holiday. Mornings are best as most people are planning or finalizing their day in the mornings. This gives them more time to react to your email message that same day. Afternoons and evenings are typically too late in the workday to encourage immediate action.
To cease opportunity, the firm should summarize their current customers' personas and purchase journey from this they are able to deduce their digital marketing capability. This means they need to form a clear picture of where they are currently and how many resources they can allocate for their digital marketing strategy i.e. labour, time etc. By summarizing the purchase journey, they can also recognise gaps and growth for future marketing opportunities that will either meet objectives or propose new objectives and increase profit. /injects>
Email marketing is one of the most cost-effective ways to promote your business, whether your goal is to build your brand or sell more stuff. Our field guide provides everything you need to know to make the most of this platform. Learn how to create an email marketing plan, design effective emails, and test them. Then discover the power of automation and how to measure the success of your emails. http://blog.ubiq.co/wp-content/uploads/2018/03/email-marketing-examples.png
Back in the early days of email we were more worried about choosing the perfect username than we were about marketing. In fact I distinctly remember being more stressed over forwarding a chain email to five other people, because it’d somehow improve the chances of my high school crush declaring their passionate love for me, than I was about whatever newsletter found its way into my inbox.
The post is very informative and the list you have shared with is great, but the Constant Contact is good I think to start the company as the live chat features are powerful in it can solve the one query on time. But it’s chargeable that to $20 at least it should be $10, I don’t know much about its but I’ll try for that free package and check it. Thank You.
Mobile advertising is ad copy delivered through wireless mobile devices such as smartphones, feature phones, or tablet computers. Mobile advertising may take the form of static or rich media display ads, SMS (Short Message Service) or MMS (Multimedia Messaging Service) ads, mobile search ads, advertising within mobile websites, or ads within mobile applications or games (such as interstitial ads, "advergaming," or application sponsorship).[24]:23 Industry groups such as the Mobile Marketing Association have attempted to standardize mobile ad unit specifications, similar to the IAB's efforts for general online advertising.[49]

The huge advantage of email over social media is that prospects and customers are more likely to see an email than social media. Just posting something doesn't mean that everyone you want to see your message will see it. Your post might not even show up in your targets' social media streams. However, an email will sit in the inbox until it's read (or deleted). 

Set your target audience. Audiences can be split up in a variety of ways including gender, age, geographic location, or buying habits. Before you send your blast, you want to make sure that you can segment people into different lists so you can target your blasts to the right people. Consider what demographic you want to target, and what they will need to fulfill your call-to-action.
Consider sharing the focus of the email between the call to action you want from your user and offering them something like a discount, early access to a new product, or a free trial period for subscription-based services. Get creative here. Give serious thought to what your customers will find valuable. No one knows their needs better than you and don’t be scared to do some research into what they’d want.
Email marketing has always been Permission based, but is silently replaced with its brother; Tease Marketing, continuously building on a brand relationship based on mutual interest. The challenge becomes presenting an – already in itself – appealing and attractive message. But how to benchmark your email marketing efforts to fit that new train of thought?
Your email list, on the other hand, is yours, free and clear. Using your website and social media to attract visitors and followers, and then encouraging them to sign up for your email list gives you the opportunity to contact your prospects at any point in the future, with any kind of messaging you want; and you’re not bound by search engine rankings or social media algorithms.
You get email by setting up an email account with a website, some of the most popular sites are yahoo, gmail, and msn. Once you get on to the website you'll see a button somewhere on the home page to create an email account or just a sign in box. Once you click it, you can click to either create an account or register. You'll be asked certain questions and to create a password. Make sure you make your email and password easy to remember and keep you email address professional. Then, your set to go. Now the only way for you to start getting emails is to give people your email address including the (.com) ending. ( for ex: EmailME@yahoo.com), Or signing up to receive emails promotions from different sites. When you start receiving mail it will show in your inbox once you login to your account. Some websites offer tutorials for beginners to learn to navigate around their account.

This email list growth was a major component of a massive product launch we undertook this past winter. In the lead-up to the launch of our Instagram Domination 2.0 course, we doubled down on our goal to rapidly grow our email list. In this article I’m going to reveal to you the exact tactics we used and how we employed them in order to explode our mailing list.


Now that you’re all set up to starting collecting emails, the fun part begins (when I say ‘fun’, I actually mean ‘hard’). If your site receives a good amount of traffic and you have a truly compelling offer, this shouldn’t be too difficult. However, if you’re like most business owners, you’ll need to look outside your own audience to start building your list.

If you already have a pretty large database, you also likely have some contacts that have gone quite stale. If so, I recommend running a re-engagement campaign that can help you both scrub your list and prevent the kind of spam and IP issues I addressed earlier, as well as reawaken old contacts that might have forgotten about you, but would actually be great fits for sales.


A text ad displays text-based hyperlinks. Text-based ads may display separately from a web page's primary content, or they can be embedded by hyperlinking individual words or phrases to advertiser's websites. Text ads may also be delivered through email marketing or text message marketing. Text-based ads often render faster than graphical ads and can be harder for ad-blocking software to block.[50]
Targeted mailing is when the advertiser mails to a segmented list of addresses using geographic, demographic, and psychographic filters, among others. While a targeted mailing is often more relevant to the audience and can result in greater engagement and response, it tends to be expensive, especially as you add more refined filter criteria (also known as selects).
 2. Select recipients based on a list, tag, or saved filter. For example, you may add the subscribers of your weekly newsletter by adding all supporters with the tag “weekly newsletter.” Alternatively, you may choose “All” and select all supporters in your nation, or all prospects. Remember that it is good practice to segment your email list in order to increase your email deliverability.
If you sign up for something and the terms include words like "Sign up to receive updates from us and our partners that we think you'll like," your email address is likely being collected for a shared or sold list. A subset of this method is called co-registration. This is where you sign up at a website, but that website also automatically, or nearly automatically, signs you up for other sites. They try to legitimize this by informing you of the additional subscriptions, or providing boxes to uncheck. This is a situation where it's not the subscriber’s intention to sign up for the material they will be receiving.
Pricing is computed in real-time and depends on your selects. Geographic selects are included in the base price. All additional demographic selects are priced per record. When ordering a mailing list, you must select how you wish to retrieve the file. We offer three methods for mailing list retrieval: 1. Download, 2. CD, 3. Labels. You may always download your file from within 'My Account.'
Save any new documentation as a PDF for download, and require that individuals enter their names and email addresses in order to access it. The value of the information you are offering is directly proportional to the amount of personal data your customers are willing to provide, so make sure the tradeoff is fair. A highly anticipated white paper or report can garner a high number of new email subscribers who are openly expressing interest in your brand, so don’t leave this opportunity unaddressed.
It includes email marketing, search engine marketing (SEM), social media marketing, many types of display advertising (including web banner advertising), and mobile advertising. Like other advertising media, online advertising frequently involves both a publisher, who integrates advertisements into its online content, and an advertiser, who provides the advertisements to be displayed on the publisher's content. Other potential participants include advertising agencies who help generate and place the ad copy, an ad server which technologically delivers the ad and tracks statistics, and advertising affiliates who do independent promotional work for the advertiser.
Buying email lists aren’t allowed by reputable email marketing services Email marketing services, including Constant Contact, do not allow you to use purchased lists. That’s because we are an email service provider that maintains a strong anti-spam policy to ensure that our customers are only sending emails to people who have expressed interest in receiving them. And that means refraining from buying an email list.
Another collection method happens when list vendors buy emails lists from industry trade shows (or other events) where people give their info during the registration process. This is not the same thing as folks who signed up with you, directly, at your trade show booth! This is where list vendors purchase the entire registration list, from the trade show, itself.

Neil O’Keefe, senior vice president of marketing and content at the Data & Marketing Association, says that marketers began questioning direct mail’s endurance in 2007. That year, Statista reports that smartphone sales jumped 70% from the previous year to $8.7 billion. At the same time, the volume of mail sent through the U.S. Postal Service began to plummet: In 2006, people in the U.S. sent 213.1 billion pieces of mail, according to USPS; by 2017, they were sending 149.5 billion pieces each year, a 29.9% decline. By this point, smartphone sales had reached $55.6 billion. The price of postage and paper had skyrocketed, as did the number of internet users—everything seemed to hammer a nail into direct mail’s coffin.
The first known large-scale non-commercial spam message was sent on 18 January 1994 by an Andrews University system administrator, by cross-posting a religious message to all USENET newsgroups.[12] In January 1994 Mark Eberra started the first email marketing company for opt in email list under the domain Insideconnect.com. He also started the Direct Email Marketing Association to help stop unwanted email and prevent spam. [13] [14]
For the design element, odds are that unless you have an artistic background, you’ll be either using a pre-existing template from your printer or having it designed by a graphics designer. The templates from your printer will more than likely have an effective eye flow and a solid ratio of graphics to text – if you go the designer route, be sure to get several mock ups and again seek the opinions of those around you whose opinion you value. And finally, print quality should be self-explanatory – be sure to go with a printer that offers some sort of guarantee on quality, or at the very least one that will offer you a refund or reprint if you’re not 100% satisfied. The last thing you’d want to do is have to settle on a poorly printed mailer to save costs.

It's practically impossible to overstate the importance of direct mailing lists to the success of your direct mail program. The correct mailing list will contain your most valuable prospects. The more careful you are in analyzing and selecting direct mailing lists, the better your chances for success. There are several different categories of mailing lists available on the market today ranging in cost and appropriateness for your market. When you are considering what type of mailing list to buy consider the following three types:
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