I’ve been chewing on what to say about the Microsoft / Yahoo merger and its impact on entrepreneurship and – more specifically – Silicon Valley entrepreneurship.  I was finally gearing up to splat out some of my thoughts on paper, but after reading Marc Andreessen’s brilliant post titled Silicon Valley after a Microsoft / Yahoo merger: a contrarian view , I don’t have to.  While I don’t agree with 100% of the things Marc says, he covers all the ground I would have an just saved me 30 minutes of writing.