If you've ever been creeped out by those targeted ads on Facebook, they're about to be a touch easier to spot. The social network has agreed with the Online Interest-Based Advertising Accountability Program to start displaying the "AdChoice" icon (the image above) in behaviorally targeted Facebook Exchange (FBX) ads, but only when users roll over a gray "x" above the ad. Not only will this let them know the ad is marketed to them based on browser behavior, but it'll let them opt out of that specific ad n
