Perhaps you’ve heard the saying that goes, “If you’re not paying for the product, then you’re the product.”

Facebook (and just about every other free web service) has built a business on that saying and its implications, and the European Commission is taking the social network to task for it.

First, let’s have a primer on how Facebook makes money: The company gets you to willingly enter all kinds of demographic and behavioral information into a massive database. Advertisers, big brands and Facebook’s sales team call it “data.” You call it your profile, your likes, your checkins, your comments and everything else you do on the site.

via Facebook’s entire business model is under fire in the EU | VentureBeat.