Digital Advertising Tutorials
Some of the best digital advertising tutorials online.
http://www.redflymarketing.com/adwords-tutorials/adwords-advanced-techniques/how-to-eliminate-unproductive-traffic/
The paradox of AdWords is that by limiting who sees your ads you can increase your ROI. A mistake many people make is thinking that the more impressions their ads get, the better. That the more visitors to their website, the better. However, with PPC advertising that’s not always true.
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Credit to original author (click on youtube video for more info).