You don’t even have to think you’re a spammer to feel bad. Many of us feel bad just for sending too many emails. Often solopreneurs are downright terrified of sending an email update to their subscribers. They say they don’t know what to say, but I think it’s that they’re afraid, somehow, that they’re bothering their subscribers. They aren’t sure they deserve to be in their inboxes, even if those same people signed up for their emails (through a double opt-in process, of course). 

Cost per mille, often abbreviated to CPM, means that advertisers pay for every thousand displays of their message to potential customers (mille is the Latin word for thousand). In the online context, ad displays are usually called "impressions." Definitions of an "impression" vary among publishers,[58] and some impressions may not be charged because they don't represent a new exposure to an actual customer. Advertisers can use technologies such as web bugs to verify if an impression is actually delivered.[59][60]:59

Choose analytics software that works for your organization. While many email marketing applications have built-in analytics, you may consider getting a third party system to help you process the data or statistics on your campaigns. Some software can give you a more comprehensive or visual representation of your analytics, while others may track something that your current content management system does not. The size and scope of your e-blast campaign will dictate which kind of software you require.
And that leads us right into understanding service pricing and packaging. The email marketing services we reviewed range from about $5 per month to as much as $20 per month for a range of features. Many email marketing plans include unlimited email sends each month and bill you based on the number of subscribers. If you have a small list, then look for a company that offers a free plan, a low-cost plan for several hundred subscribers, or even a pay-as-you-go plan. On the flip side, many of these services also offer high-volume plans with up to 100,000 or more contacts. Sometimes this requires a custom plan that has to be arranged directly with a sales rep. If you're willing to commit, then look for the companies that offer discounts if you pay yearly rather than monthly. A few offer also money-back guarantees.
Alas, ESPs on shared IP addresses that don't require customers to use opt-in email lists typically suffer poor deliverability. Why? One customer's ill-gotten email address list can poison the deliverability of the other customers on that shared IP address. You're going to want to hitch your wagon to the light side of the email marketing force if you want your emails to actually get into inboxes.
Establishment of customer exclusivity: A list of customers and customer's details should be kept on a database for follow up and selected customers can be sent selected offers and promotions of deals related to the customer's previous buyer behaviour. This is effective in digital marketing as it allows organisations to build up loyalty over email.[22]
An omni-channel approach not only benefits consumers but also benefits business bottom line: Research suggests that customers spend more than double when purchasing through an omni-channel retailer as opposed to a single-channel retailer, and are often more loyal. This could be due to the ease of purchase and the wider availability of products.[24]
e-Commerce describes the exploitation of electronic means and platforms to conduct company business. e-Marketing (also referred to as web marketing or internet marketing) uses electronic communication technologies including the Internet, mobile phones and digital televisions to accomplish marketing objectives (McDonald and Wilson, 1999). More specifically, e-Marketing portrays company efforts to inform and communicate with buyers, and promote and sell its products and services over the Internet (Kotler and Keller, 2006). https://www.sendblaster.com/wp-content/uploads/2018/03/your-email-marketing-campaign-in-minutes.png
Paid channel marketing is something you’ve probably come across in some form or another. Other names for this topic include Search Engine Marketing (SEM), online advertising, or pay-per-click (PPC) marketing. Very often, marketers use these terms interchangeably to describe the same concept — traffic purchased through online ads. Marketers frequently shy away from this technique because it costs money. This perspective will put you at a significant disadvantage. It’s not uncommon for companies to run PPC campaigns with uncapped budgets. Why? Because you should be generating an ROI anyway. This chapter walks through the basics of how.
Establishment of customer exclusivity: A list of customers and customer's details should be kept on a database for follow up and selected customers can be sent selected offers and promotions of deals related to the customer's previous buyer behaviour. This is effective in digital marketing as it allows organisations to build up loyalty over email.[22]
CPA (Cost Per Action or Cost Per Acquisition) or PPP (Pay Per Performance) advertising means the advertiser pays for the number of users who perform a desired activity, such as completing a purchase or filling out a registration form. Performance-based compensation can also incorporate revenue sharing, where publishers earn a percentage of the advertiser's profits made as a result of the ad. Performance-based compensation shifts the risk of failed advertising onto publishers.[62]:4, 16
Targeting, viewability, brand safety and invalid traffic: Targeting, viewability, brand safety and invalid traffic all are aspects used by marketers to help advocate digital advertising. Cookies are a form of digital advertising, which are tracking tools within desktop devices; causing difficulty, with shortcomings including deletion by web browsers, the inability to sort between multiple users of a device, inaccurate estimates for unique visitors, overstating reach, understanding frequency, problems with ad servers, which cannot distinguish between when cookies have been deleted and when consumers have not previously been exposed to an ad. Due to the inaccuracies influenced by cookies, demographics in the target market are low and vary (Whiteside, 2016).[42] Another element, which is affected within digital marketing, is ‘viewabilty’ or whether the ad was actually seen by the consumer. Many ads are not seen by a consumer and may never reach the right demographic segment. Brand safety is another issue of whether or not the ad was produced in the context of being unethical or having offensive content. Recognizing fraud when an ad is exposed is another challenge marketers face. This relates to invalid traffic as premium sites are more effective at detecting fraudulent traffic, although non-premium sites are more so the problem (Whiteside, 2016).[42]

Much of this increase can be attributed to the ability to couple physical mail pieces with mobile and online marketing efforts, resulting in a sound multichannel marketing program. Think of how many pieces of mail you've seen recently sporting QR codes, URLs to social media sites, and SMS short codes. Mail affords marketers greater reach, allows more information to be communicated than most online advertising efforts, and gives buyers the opportunity to respond to a call to action in the way that they want, on their own time.


As advertisers collect data across multiple external websites about a user's online activity, they can create a detailed profile of the user's interests to deliver even more targeted advertising. This aggregation of data is called behavioral targeting.[26] Advertisers can also target their audience by using contextual to deliver display ads related to the content of the web page where the ads appear.[19]:118 Retargeting, behavioral targeting, and contextual advertising all are designed to increase an advertiser's return on investment, or ROI, over untargeted ads.[27]
By focusing on market research, the psychology of attraction, creativity and ingenuity, students learn the best ways of implementing a direct mail campaign. A marketing education informs a future marketer about what motivates people to purchase, donate, or vote; and gives them the practical and creative skills to produce media to achieve the desired results. (See also Consumer Psychology)

E-marketing refers to the use of the Internet and digital media capabilities to help sell your products or services. These digital technologies are a valuable addition to traditional marketing approaches regardless of the size and type of your business. E-marketing is also referred to as Internet marketing (i-marketing), online marketing or web-marketing.
A pillar of content and copywriting is to write as if you’re speaking to one single person at a time. This isn’t feasible with mass email marketing, but segmenting your list and messages helps attain the same sort of feeling. Email marketing segmentation transforms generic email into personalized and tailored messages more likely to resonate with your recipients.
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.
This is why it’s so important to make the time to establish strong connections with other influencers in your niche, and to view them as collaborators and not competitors. It was because of the relationships that we’ve built with these other influencers that allowed us to have our lead magnets and content shared directly to their own community. Which in turn led to us growing our mailing list by 56,000 new subscribers in just 30 days.
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.
Note: If you want to attach additional files, such as a .pdf, we recommend that you store these files on a cloud storage service, such as Dropbox or Google Drive, and linking to these files within your blast. We do not support file attachments to an email blast as these file types tend to be larger, increasing your chances of triggering spam filters and preventing your blast from reaching your recipients.
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]
Best Practices Calls to Action Coding Content Marketing Copywriting Customer Journey Customer Spotlight Data-Driven Marketing Deliverability Digital Marketing Email Automation Email Design Email Development Email List Email Marketing Email Templates Event Marketing Marketing Automation Metrics Personalization Segmentation Social Media Strategy Subject Line Testing Transactional Email
The concept is simple. If someone is reading an in-depth blog post of yours, chances are they’re very interested in what you have to say on the topic. The key is to then offer them something that is directly related to the topic they’re reading about. You know they’re already interested, so by offering instantaneous extra value it’s not difficult to see why people would gladly sign up.
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:
There are a number of ways brands can use digital marketing to benefit their marketing efforts. The use of digital marketing in the digital era not only allows for brands to market their products and services, but also allows for online customer support through 24/7 services to make customers feel supported and valued. The use of social media interaction allows brands to receive both positive and negative feedback from their customers as well as determining what media platforms work well for them. As such, digital marketing has become an increased advantage for brands and businesses. It is now common for consumers to post feedback online through social media sources, blogs and websites on their experience with a product or brand.[25] It has become increasingly popular for businesses to use and encourage these conversations through their social media channels to have direct contact with the customers and manage the feedback they receive appropriately.
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. http://1287170585.rsc.cdn77.org/wp-content/uploads/2016/11/3Stages_EmailMkt_Branding.png
!function(n,t){function r(e,n){return Object.prototype.hasOwnProperty.call(e,n)}function i(e){return void 0===e}if(n){var o={},s=n.TraceKit,a=[].slice,l="?";o.noConflict=function(){return n.TraceKit=s,o},o.wrap=function(e){function n(){try{return e.apply(this,arguments)}catch(e){throw o.report(e),e}}return n},o.report=function(){function e(e){l(),h.push(e)}function t(e){for(var n=h.length-1;n>=0;--n)h[n]===e&&h.splice(n,1)}function i(e,n){var t=null;if(!n||o.collectWindowErrors){for(var i in h)if(r(h,i))try{h[i].apply(null,[e].concat(a.call(arguments,2)))}catch(e){t=e}if(t)throw t}}function s(e,n,t,r,s){var a=null;if(w)o.computeStackTrace.augmentStackTraceWithInitialElement(w,n,t,e),u();else if(s)a=o.computeStackTrace(s),i(a,!0);else{var l={url:n,line:t,column:r};l.func=o.computeStackTrace.guessFunctionName(l.url,l.line),l.context=o.computeStackTrace.gatherContext(l.url,l.line),a={mode:"onerror",message:e,stack:[l]},i(a,!0)}return!!f&&f.apply(this,arguments)}function l(){!0!==d&&(f=n.onerror,n.onerror=s,d=!0)}function u(){var e=w,n=p;p=null,w=null,m=null,i.apply(null,[e,!1].concat(n))}function c(e){if(w){if(m===e)return;u()}var t=o.computeStackTrace(e);throw w=t,m=e,p=a.call(arguments,1),n.setTimeout(function(){m===e&&u()},t.incomplete?2e3:0),e}var f,d,h=[],p=null,m=null,w=null;return c.subscribe=e,c.unsubscribe=t,c}(),o.computeStackTrace=function(){function e(e){if(!o.remoteFetching)return"";try{var t=function(){try{return new n.XMLHttpRequest}catch(e){return new n.ActiveXObject("Microsoft.XMLHTTP")}},r=t();return r.open("GET",e,!1),r.send(""),r.responseText}catch(e){return""}}function t(t){if("string"!=typeof t)return[];if(!r(j,t)){var i="",o="";try{o=n.document.domain}catch(e){}var s=/(.*)\:\/\/([^:\/]+)([:\d]*)\/{0,1}([\s\S]*)/.exec(t);s&&s[2]===o&&(i=e(t)),j[t]=i?i.split("\n"):[]}return j[t]}function s(e,n){var r,o=/function ([^(]*)\(([^)]*)\)/,s=/['"]?([0-9A-Za-z$_]+)['"]?\s*[:=]\s*(function|eval|new Function)/,a="",u=10,c=t(e);if(!c.length)return l;for(var f=0;f0?s:null}function u(e){return e.replace(/[\-\[\]{}()*+?.,\\\^$|#]/g,"\\$&")}function c(e){return u(e).replace("<","(?:<|<)").replace(">","(?:>|>)").replace("&","(?:&|&)").replace('"','(?:"|")').replace(/\s+/g,"\\s+")}function f(e,n){for(var r,i,o=0,s=n.length;or&&(i=s.exec(o[r]))?i.index:null}function h(e){if(!i(n&&n.document)){for(var t,r,o,s,a=[n.location.href],l=n.document.getElementsByTagName("script"),d=""+e,h=/^function(?:\s+([\w$]+))?\s*\(([\w\s,]*)\)\s*\{\s*(\S[\s\S]*\S)\s*\}\s*$/,p=/^function on([\w$]+)\s*\(event\)\s*\{\s*(\S[\s\S]*\S)\s*\}\s*$/,m=0;m]+)>|([^\)]+))\((.*)\))? in (.*):\s*$/i,o=n.split("\n"),l=[],u=0;u=0&&(g.line=v+x.substring(0,j).split("\n").length)}}}else if(o=d.exec(i[y])){var _=n.location.href.replace(/#.*$/,""),T=new RegExp(c(i[y+1])),E=f(T,[_]);g={url:_,func:"",args:[],line:E?E.line:o[1],column:null}}if(g){g.func||(g.func=s(g.url,g.line));var k=a(g.url,g.line),A=k?k[Math.floor(k.length/2)]:null;k&&A.replace(/^\s*/,"")===i[y+1].replace(/^\s*/,"")?g.context=k:g.context=[i[y+1]],h.push(g)}}return h.length?{mode:"multiline",name:e.name,message:i[0],stack:h}:null}function y(e,n,t,r){var i={url:n,line:t};if(i.url&&i.line){e.incomplete=!1,i.func||(i.func=s(i.url,i.line)),i.context||(i.context=a(i.url,i.line));var o=/ '([^']+)' /.exec(r);if(o&&(i.column=d(o[1],i.url,i.line)),e.stack.length>0&&e.stack[0].url===i.url){if(e.stack[0].line===i.line)return!1;if(!e.stack[0].line&&e.stack[0].func===i.func)return e.stack[0].line=i.line,e.stack[0].context=i.context,!1}return e.stack.unshift(i),e.partial=!0,!0}return e.incomplete=!0,!1}function g(e,n){for(var t,r,i,a=/function\s+([_$a-zA-Z\xA0-\uFFFF][_$a-zA-Z0-9\xA0-\uFFFF]*)?\s*\(/i,u=[],c={},f=!1,p=g.caller;p&&!f;p=p.caller)if(p!==v&&p!==o.report){if(r={url:null,func:l,args:[],line:null,column:null},p.name?r.func=p.name:(t=a.exec(p.toString()))&&(r.func=t[1]),"undefined"==typeof r.func)try{r.func=t.input.substring(0,t.input.indexOf("{"))}catch(e){}if(i=h(p)){r.url=i.url,r.line=i.line,r.func===l&&(r.func=s(r.url,r.line));var m=/ '([^']+)' /.exec(e.message||e.description);m&&(r.column=d(m[1],i.url,i.line))}c[""+p]?f=!0:c[""+p]=!0,u.push(r)}n&&u.splice(0,n);var w={mode:"callers",name:e.name,message:e.message,stack:u};return y(w,e.sourceURL||e.fileName,e.line||e.lineNumber,e.message||e.description),w}function v(e,n){var t=null;n=null==n?0:+n;try{if(t=m(e))return t}catch(e){if(x)throw e}try{if(t=p(e))return t}catch(e){if(x)throw e}try{if(t=w(e))return t}catch(e){if(x)throw e}try{if(t=g(e,n+1))return t}catch(e){if(x)throw e}return{mode:"failed"}}function b(e){e=1+(null==e?0:+e);try{throw new Error}catch(n){return v(n,e+1)}}var x=!1,j={};return v.augmentStackTraceWithInitialElement=y,v.guessFunctionName=s,v.gatherContext=a,v.ofCaller=b,v.getSource=t,v}(),o.extendToAsynchronousCallbacks=function(){var e=function(e){var t=n[e];n[e]=function(){var e=a.call(arguments),n=e[0];return"function"==typeof n&&(e[0]=o.wrap(n)),t.apply?t.apply(this,e):t(e[0],e[1])}};e("setTimeout"),e("setInterval")},o.remoteFetching||(o.remoteFetching=!0),o.collectWindowErrors||(o.collectWindowErrors=!0),(!o.linesOfContext||o.linesOfContext<1)&&(o.linesOfContext=11),void 0!==e&&e.exports&&n.module!==e?e.exports=o:"function"==typeof define&&define.amd?define("TraceKit",[],o):n.TraceKit=o}}("undefined"!=typeof window?window:global)},"./webpack-loaders/expose-loader/index.js?require!./shared/require-global.js":function(e,n,t){(function(n){e.exports=n.require=t("./shared/require-global.js")}).call(n,t("../../../lib/node_modules/webpack/buildin/global.js"))}});
Find things that encourage people to engage. By tracking the statistics on each of your emails, you'll be able to develop concise reports about what works and what doesn't for your target audience. Take note of the specific days and times for your highest open and conversion rates. Test different tones and subject lines and see what causes your audience to read the blast. Stick to the things that your consumer tends to favor or enjoy and avoid repeating aspects of emails that do poorly according to the stats.
Sometimes this just means cashing in on some old favors, other times it means we’ll share one of their lead magnets on our account too. Sometimes we’ll work out a deal where we’ll do five caption shoutouts of their account in return for them sharing just one of our lead magnets or something similar. If necessary, sometimes we’ll even pay money to have them share one of our promotional posts.

Email Newsletters are some of the most common and popular forms of email marketing. Use email newsletters to provide your subscribers with timely, expected, and helpful updates from your brand. Include thought leadership or how-tos, announcements about your product or service, insider-peeks into your business, or any other engaging content that adds value to your subscribers’ inboxes.
If you create an email blast that asks your contacts to do something (like call you, fill out a form on your website, or take advantage of an offer), make sure you have that high up in the email.  A good rule of  thumb is that your call to action should appear right away, when someone opens your email. If someone has to scroll to find it, it’s in the wrong place. It’s the same philosophy as the old newspaper theory that the stories “above the fold” are those which get the most attention.
Companies considering the use of an email marketing program must make sure that their program does not violate spam laws such as the United States' Controlling the Assault of Non-Solicited Pornography and Marketing Act (CAN-SPAM),[9] the European Privacy and Electronic Communications Regulations 2003, or their Internet service provider's acceptable use policy.
You want to have a single purpose for your direct mail piece. Often times the goal of a direct mail campaign is to get the recipient to buy a product or use a service. Other goals can be to send people to your website, get people to enter a contest, or let people know about an upcoming event. Knowing your goal will help you formulate what you want the direct mail piece to say. You also need to consider what the recipient stands to gain from the letter.
USPS® Every Door Direct Mail® (EDDM®) is an affordable targeted advertising technique that lets you map your marketing mail audience by age, income, or household size2. You can use the EDDM mapping tool to choose the ZIP Code™ and carrier route that will target your best possible customers—current and future. The EDDM mapping tool is easy to use and discounts are available even for small businesses.
In the 1990s, the term Digital Marketing was first coined,[10]. With the debut of server/client architecture and the popularity of personal computers, the Customer Relationship Management (CRM) applications became a significant part of marketing technology.[citation needed] Fierce competition forced vendors to include more service into their softwares, for example, marketing, sales and service applications. Marketers were also able to own huge online customer data by eCRM softwares after the Internet was born. Companies could update the data of customer needs and obtain the priorities of their experience. This led to the first clickable banner ad being going live in 1994, which was the "You Will" campaign by AT&T and over the first four months of it going live, 44% of all people who saw it clicked on the ad [11].
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.
The Nielsen Global Connected Commerce Survey conducted interviews in 26 countries to observe how consumers are using the Internet to make shopping decisions in stores and online. Online shoppers are increasingly looking to purchase internationally, with over 50% in the study who purchased online in the last six months stating they bought from an overseas retailer.[23]
Much of this increase can be attributed to the ability to couple physical mail pieces with mobile and online marketing efforts, resulting in a sound multichannel marketing program. Think of how many pieces of mail you've seen recently sporting QR codes, URLs to social media sites, and SMS short codes. Mail affords marketers greater reach, allows more information to be communicated than most online advertising efforts, and gives buyers the opportunity to respond to a call to action in the way that they want, on their own time.

After that, you need to make a choice about how to construct an online presence that helps you achieve that goal. Maybe you need to set up an e-commerce site. If you’re interested in publishing content to drive awareness and subscribers, look into setting up a blog. A simple website or landing page with a lead capture form can help you start developing your brand and generating traffic. A basic analytics platform (like Google Analytics, which is free) can help you start to measure how you are tracking towards your initial goal.
For Campaign Monitor customers, you can either manually upload an existing list (from an Excel file for instance) or you can connect your Campaign Monitor account to the tool where your customer data lives (such as your CRM, accounting, eCommerce tool, and hundreds of others) and automatically sync your customer information into your Campaign Monitor account.
You want to have a single purpose for your direct mail piece. Often times the goal of a direct mail campaign is to get the recipient to buy a product or use a service. Other goals can be to send people to your website, get people to enter a contest, or let people know about an upcoming event. Knowing your goal will help you formulate what you want the direct mail piece to say. You also need to consider what the recipient stands to gain from the letter.
It’s a best practice to ask the referrer not only for a friend’s email address, but also for a full name so that the message is personalized. Most important, remember to add the referee’s full name to the email as well. By referencing whom the email content was recommended by, you gain instant credibility and will attain much higher conversion rates.

Note: If you want to attach additional files, such as a .pdf, we recommend that you store these files on a cloud storage service, such as Dropbox or Google Drive, and linking to these files within your blast. We do not support file attachments to an email blast as these file types tend to be larger, increasing your chances of triggering spam filters and preventing your blast from reaching your recipients.
Shifting the focus to the time span, we may need to measure some "Interim Metrics", which give us some insight during the journey itself, as well as we need to measure some "Final Metrics" at the end of the journey to inform use if the overall initiative was successful or not. As an example, most of social media metrics and indicators such as likes, shares and engagement comments may be classified as interim metrics while the final increase/decrease in sales volume is clearly from the final category.
An omni-channel approach not only benefits consumers but also benefits business bottom line: Research suggests that customers spend more than double when purchasing through an omni-channel retailer as opposed to a single-channel retailer, and are often more loyal. This could be due to the ease of purchase and the wider availability of products.[24]
A lead magnet (a.k.a. an optin bribe) is something amazing that you give away for free in exchange for an email address. This doesn’t have to cost you anything to create– most lead magnets are digital materials like PDFs, MP3 audio files, or videos that you can create yourself at minimal or no cost. It can be absolutely anything you want, so long as it provides value for free.
As advertisers collect data across multiple external websites about a user's online activity, they can create a detailed profile of the user's interests to deliver even more targeted advertising. This aggregation of data is called behavioral targeting.[26] Advertisers can also target their audience by using contextual to deliver display ads related to the content of the web page where the ads appear.[19]:118 Retargeting, behavioral targeting, and contextual advertising all are designed to increase an advertiser's return on investment, or ROI, over untargeted ads.[27]
×