Update 11/27/2012: The sales are over. : (
Facebook newsfeed is an embodiment of our war on noise. We depend on the newsfeed optimizer to protect our limited attention span, and as a consequence, Facebook gets to choose what stories we do and don’t see, just as Google chooses which search results we do and don’t see. Conceptually, this seems very lucrative: Facebook is auctioning off our limited attention span to the highest bidder, as long as the bidder has a candidate newsstory to promote.
This is what Like-gate is about.I encourage you to read his post in its entirety here.