Just because online advertising is different from billboards in that billboards don't stalk me doesn't in any ways redeem online advertising. I have worked tha

Just because online advertising is different from billboards in that billboards don't stalk me doesn't in any ways redeem online advertising. I have worked that business before and written that code for Travelocity. I created Travelocity's most successful advertising code before they were consumed by Expedia (an annoying popunder that achieved click-through rates of 14%). I later worked as the developer on their analytics team and worked hand-in-hand with their media (advertising) team. The name of the game is experimentation and analysis. The more data you have on a user the more accurate and targeted your decisions can be about that user. Spyware is absolutely the name of the game.