Looking over the content on the site I was depressed by all the philanthropy and environmentalism. Not that these aren't good things but I think Bill has been so successful at building software and corporations that his time would be better used teaching people these things.
Imagine the articles and insight we could get if he would convert into someone like Paul Graham.
What Bill was truly good at, was hiring smart people and getting them to all work towards something big. Putting a computer on every desk was a big goal. Eradicating Malaria and the other things the foundation is working on are big goals. And to be honest - I'm impressed by the way he is going about it.
This site isn't about him resting on his laurels - looking back at the success he had. This is the posts/information on what he is working on now. So it wont have the deep insight that he would have about software/corporations. But the fact he is applying that insight to Philanthropy and to the world of NGO's is fantastic and I applaud him for it.