One of the down falls to online advertising has always been that one item you looked at for two seconds yesterday at lunch following you for the rest of the week. With ads that follow you around the web many people get annoyed with the persistence.
Google developed a blocker for these types of ads several years ago and has recently updated it. With companies like this doing what they can to curb tracking ads it makes me wonder what is next in the digital ad space. Because companies are throwing so much money at digital there has to be a point when they figure out what is going to work and what is going to work well.