I can't say enough good things about this information resource. Bruce Schneier, CTO of Counterpane, produces what's probably the best general computer security newsletter in circulation today. Schneier's Crypto-Gram Newsletter is a free monthly e-mail newsletter now available as a podcast.

While Schneier is often seen by many as just a crypto expert, his insights across the industry and across the globe are revealing and dead-on. He can cut away the false sense of security from an issue and expose the real problem faster than any other expert I know. If you're in the computer security field, do yourself a favor and read this newsletter religiously.