Pop-under ads are a lot like pop-up ads except that they appear behind the browser instead of obnoxiously covering the page your site visitor is browsing. Pop-under ads tend to be more effective than pop-up ads because they don’t hamper your experience with the site you are currently on. Users have learned to just click exit when a pop-up ad comes up. Pop-under ads can be viewed at a later time of the users own choosing, encouraging the user to give it a second thought.
7search: 7search is another PPC “Pay Per Click” source that is not so well known. The fact that they are not as well known as the heavy hitters like Google, Bing and Yahoo gives you a little advantage as far as pricing goes. You can easily set up a campaign and choose your keywords with prices that range in the pennies per click. You can also set your own daily budget so you will not run over the allotted amount you’re willing to spend.
Purchasing organic traffic is yet another tactic that is slated to be short-lived, similar to keyword stuffing, negative SEO, or creating fake domains that link to a website. Similar to past tactics, any attempt to game Google's search algorithm will be strictly punished, thereby plummeting a website's search performance once flagged. Purchasing organic traffic will certainly be penalized by Google, though it is to be seen when this takes effect.
Part of the problem lies with ads on mobile. Mobile ads take an average of five seconds to load — about double the time it takes for desktop ads, according to research by the Media Ratings Council. Research from Adobe also found that 80% of marketers don’t have a mobile strategy in place for the next year — a serious point of concern considering that mobile devices now make up 57% of all time spent on digital media, according to comScore.