albo - 1:40 pm on Apr 22, 2010 (gmt 0)

What is scary is, how much private info is revealed to your so-called friends (and thereby friends of friends) by default. FB offers the opportunity to "opt-out", as the Gorg does with some things, but the explanation of this fact is carefully hidden, and the savvy user must be interested enough to dredge it out and unclick "Allow".