Our friends over at SXSWi announced that Mark Zuckerberg, founder of Facebook, will deliver the keynote presentation on Sunday, March 9th at 2pm. Mark is one of the luckier guys in the world, and he’s been hitting the speaking circuit lately, appearing recently on 60 Minutes to try to explain the whole Beacon thing. The format will be an on-stage interview, conducted by Sarah Lacy. Sarah is a writer for BusinessWeek, and co-hosts Yahoo Finance’s [...]