Looking for more information? I’ve found the following resources quite helpful.

Martial Arts

• rec.martial-arts FAQ — a great compendium of information about different styles of martial arts, collected over years of Usenet postings. An excellent place to start, if you’re new to martial arts.
• Wikipedia: Martial Arts — Wikipedia’s encyclopedic write-up of martial arts.

Fitness

• Brad Appleton’s Stretching and Flexibility FAQ — the most comprehensive document on stretching I’ve ever seen.

Philosophy

• Zen Koans (AshidaKim.com) — Get your fill of zen here with 101 koans.