Sometimes the most interesting innovations come from the simplest ideas.
Case in point: one of the hottest online advertising trends today is something called “ad retargeting.” Erick Schonfeld of TechCrunchexplains retargeting this way:
“The idea is simple. When you visit a retailer’s or other advertiser’s website, it drops a cookie on your browser and the next time it sees you pop up on another site it loads an ad from that retailer. You’ve already expressed interest in that advertiser by visiting their site, so they retarget you whenever they can. It may sound a bit stalkerish, but trust me, everyone is doing it.”
There are some variations of this definition, but for our purposes today it’s close enough.