Two new blogs are on Planet Lisp: Stefan Scholl and Manuel Odendahl. Manuel's is set up a little differently than most. He has written some very long, very interesting technical posts, but rather than offering the entire post via a feed, he has made a concise abstract available with a link to the full article. Entry truncation is usually the wrong thing to do (I hate to see entries that consist of "I wrote a really great library this weekend. It's for ..."), but in this case it is done by hand, carefully, and I think it's the right way to go.
Charles Stewart has been removed; to keep up with his diary, see Advogato.