At the Web 2.0 Summit in San Francisco today, Facebook CEO Mark Zuckerberg sat down with John Battelle who pressed him on a number of questions. While there were no major revelations in today’s interview, here are a few interesting notes from Zuckerberg from the session:

• Facebook is now at 120 million users (up from 100 million in August). International growth has been the primary growth goal this year.
• Facebook is opening up new international sales offices, including one in France.
• Microsoft was a big part of Facebook’s revenues early on, but it’s a “smaller percentage than other pieces” now.
• The valuation of the Microsoft investment was “favorable” for Facebook, but “On a day-to-day basis, we do not have a discussion where we need to do something to value the company at $15 billion,” Zuckerberg said. Microsoft was more interested in the partnership.
• Facebook is still hiring top engineering and sales people, and is at over 700 people.
• It’s still early in the formation of social network platforms – too early to tell what form they will take.

Photo credit: Brian Solis, www.briansolis.com, bub.blicio.us.