Adam's Music Theory Online
A really incredible, interactive learning site that teaches theory in a step by step fashion. It even has an interval ear trainer(make sure you have a good sound card!)
On line instruction for the Saxophone including technique and music theory instruction. Saxophone lessons by one of the San Francisco Bay Area's best and most experienced Saxophone instructors.
Gerard Cornielje's saxophone page. Lots of interesting information and great links!
The SaxShed is the perfect online starting point for anyone who is serious about learning how to play the sax. When you need to improve you've got to hit the shed!
Site des Soufflants de l'EJMA
Translated: "Site of Blowing of the EJMA" Don't let the translation put you off...this site is chock full of sax info, including transcriptions, techniques, history, etc. Worth translating through Babble Fish!
A resource for both new and inexperienced players. Common scales, patterns and licks, exercises and useful tips.
Check out this site if you want to learn more about the tenor saxophone. It includes sound bites, pictures, history, and some other basic information for beginners.