Did anyone really expect them NOT to sell this data for ad purposes?

Services like Google, Myspace and facebook are free. Don't kid yourself, they are doing this for money. If you pay - demand privacy. If it's free - come on, you did put all the personal data voluntarily, didn't you?

All they use is statistical data. Be fair - no one really cares about your individual private data, unless you're rich and/or famous. But then you will be much more cautious about sharing personal data on the web. You will, won't you?