WSJ: MySpace, apps share user IDs with advertisers
– Fri Oct 22, 8:28 pm ET
LOS ANGELES – "MySpace has been sharing with its advertisers data that can be used to identify user profile pages, but the company doesn't consider that to be a problem."
It's that ever fluctuating definition of private data that'll get you every time. It doesn't matter who it is or what they profess to be (e.g. "Do no evil"), when it comes to money (re: advertisers), all bets are off.