At the moment she's finishing a book for publication in 2012 that debunks myths about teens and social media. (Myth number five: Kids don't care about privacy.) Mark Zuckerberg might want to pick up a copy.

FORBES: Magazine Article

Update: In December 2009, Facebook changed its privacy settings, and CEO Mark Zuckerberg became a whole lot less private.

FORBES: How much privacy does the Facebook executive team have?

Facebook founder and CEO Mark Zuckerberg declared privacy dead three years ago.

FORBES: Google Is Very Creepy, And That's What Makes It So Awesome