Consumers also face malware risks, i.e. malvertising, when interacting with online advertising. Cisco's 2013 Annual Security Report revealed that clicking on ads was 182 times more likely to install a virus on a user's computer than surfing the Internet for porn.[105][106] For example, in August 2014 Yahoo's advertising network reportedly saw cases of infection of a variant of Cryptolocker ransomware.[107]
Whether you’re wanting to send emails quarterly, monthly, or more often, put your email creation dates on a calendar and stick to the schedule. You’ll build momentum for yourself and your contacts. They’ll come to start expecting your emails to arrive within a certain timeframe. If you’re good about sending your emails for a while but then suddenly go dark, you’ll start to lose the momentum on both ends. Keep the bigger picture in mind when forming this schedule. If you have a busy season or other foreseen challenge up ahead, for example, you may not have the same amount of time to allot to emailing as you do right now. Take the various factors affecting your business into account, and then increase or decrease the frequency of your emails accordingly so that you can maintain consistency.

Many email newsletter software vendors offer transactional email support, which gives companies the ability to include promotional messages within the body of transactional emails. There are also software vendors that offer specialized transactional email marketing services, which include providing targeted and personalized transactional email messages and running specific marketing campaigns (such as customer referral programs).[citation needed]
Push marketing is a proactive technique that enables e-marketers to "push" their product/service information to Web visitors or shoppers without their requesting it. Banner advertising, pop-up advertising, e-mail promotion, and spamming belong to push marketing. For instance, e-marketers can rent designated space from Internet service providers such as America Online or MSN for their banner or pop-up ads. Using animated graphics, appealing messages, and links, e-marketers try to lure visitors to their sites to buy their products or services. Many Internet users, however, find such ads annoying and employ software that blocks pop-ups and banner ads. <
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