Bruce Schneier, author of some of the most important books in security field (Applied Cryptography, Beyond Fear etc) has started his own weblog.
Now, Schneier is not a virus expert. But he has a holistic view on what security is and how it works. And this applies not just to computer security but security in general. In fact, I dont always agree on all of his views (for example, on national ID cards), but he does have a gift of turning his ideas into highly readable and enjoyable text.
In fact, Bruce's monthly Crypto-Gram newsletter is one of the few things I still print out to paper to take with me and read later with thought.
Bruce's blog is available here in web and here in ... go read. Now.