Last month, we started hearing scuttlebutt that Mark Zuckerberg was on the outs with sisters Randi and Arielle. So we approached today's New York Times profile of Randi Zuckerberg with a jaded eye. But we didn't have to read too closely between the lines to find the tension between Facebook's CEO and his older sibling.

An addition to the Celebrity Media Intern Class of '09: Arielle Zuckerberg, the kid sister of Facebook founder Mark Zuckerberg. She's indentured herself to Dan Abrams-affiliated media blog Mediaite.com. It hasn't launched yet, but we have an exclusive preview!