Any business is going to want to see their audience, to get to know them, to better serve them. Facebook is at odds with this goal. Facebook, as a massive and deeply personal social network, is able to accumulate massive amounts of personal data on everyone who uses the site, and even many who don't. Between off-site tracking, app tracking, mobile tracking, and site usage, Facebook is in control of unprecedented amounts of personal data. Facebook is also subject to a lot regulations and controversy regarding this personal information. Oh, most of it is available for businesses to use, and