from the first post: "On its last list, the young entrepreneur was placed at $6.9 billion, but the amount is rising fast."

As we've seen before (most recently in September, 2008, when the Lehman Brothers investment firm turned to ashes) dollar amounts like this don't mean much. If this money is invested in securities whose worth is inflated, it can plummet very fast.

Another example of this was the 'dot.com' bubble, where so-called fortunes vanished almost overnight.

I signed up on Facebook for about 15 minutes one time because I wanted to send a message to an author. I cancelled my account right after posting one message. Right after that, spam offering me fake Rollex watches and a larger penis started coming to my e-mail account. Facebook's security is obviously very poor.

For a billionaire, Mark Zuckerman doesn't seem to be very competent.