Fred Wilson, blogger extraordinaire and NYC VC, recently said that he gets most of his information from Hacker News. Given my obvious affection for all things "hacker", I started reading HN about two weeks ago.
HN is a compilation of blog posts on computer technology and the best I have seen. Many of the in depth articles are truly excellent. For example, this article on Intel and ARM processors explains the history and differences very well.
Anybody interested in computer technology should be reading HN.
Sorry I could not work more "hacker" jokes into this post, but you can always find them at Geek & Poke.