Nice summary, never thought of it that way. Facebook also doesn't hold itself up as a "do no evil" type of place, so I don't think they have any reservations o

Nice summary, never thought of it that way. Facebook also doesn't hold itself up as a "do no evil" type of place, so I don't think they have any reservations of how they will use the social information (unlike google, who whilst being ad funded practically 100%, are held up to higher standards - how long that holds will be interesting to see).