Good C# Resources

Question

Hello, everybody! I found a lot of C# documentations here at http://www.only4gurus.com. They have more than 1800 documents about everything Microsoft related. It´s all free for download (or almost, since they put all those banners popping around, but I suppose this annoying things are cookies controlled because they stop after some time). I think that it can be another good (free)resources point to everyone.