Free Baen ebooks
Bradley noted in the comments for my On Balisik Station post that Baen has been making free ebooks of a bunch of their stuff available. Specifically, http://baencd.thefifthimperium.com/ seems to be the place to go. It seems legitimate to me too. Awesome. I still like dead tree, but this seems like a good excuse to give ebooks a try, especially for those books which are now quite hard to find, but that I want to read before I read the ones you can still get.