Volleyball Rules & Terminology
A nice description of volleyball rules and a glossary of volleyball terms. Credit to Jessica for finding this site for us.
USA Volleyball
Official site for volleyball in the United States. A link to the rules on this site is provided below.
Federation International de Volleyball
The FIFA of volleyball. Apparently the rules here are even more official than the ones at USAVolleyball.com.
Volleyball on Wikipedia
A good page with some history, some rules and a little bit of strategy for the competitve player.
Advanced Volleyball Strategy
Links to everything you ever wanted to know about Volleyball Strategy from About.com