If I were Microsoft, I'd have bet that much if only because the act of my giving them that much money gave them a lot of credibility to people who weren't certa

If I were Microsoft, I'd have bet that much if only because the act of my giving them that much money gave them a lot of credibility to people who weren't certain about how useful Facebook is. I think it's a gamble, but if you put money in, it encourages others to do the same.