Links:

Aebersold Jazz Online - World's largest producer and seller of play-along discs and educational materials.
Cool Jazz Chords for Guitar - Learn thousands of nice sounding chords simply by knowing a few simple ideas and really knowing a lot. By Dennis St. Germain.
Debbie Denke's Aspiring Jazz Pianist - Book and CD about improvisation for both the solo and combo keyboard player.
Dick Groove - School Without Walls - Description and enrollment info for this professional distance learning course.
Dr. Cool's Cookbook - Comprehensive guide to jazz composing and arranging from basics to advanced techniques. CD Rom for Mac and Win, ordering online available with secure server.
Fivenote Music Publishing - Six music books about jazz improvisation and theory.
Guitar Master Class - Jim Ferguson offers some jazz guitar instruction books.
Jazz Books.com - Books for pianists and vocalists. By John Ferrara, former pianist and arranger for the Buddy Rich Big Band.
JazzUtopia - Jazz music books, videos and CDs for listening, practicing and learning.
Jazzworx! - A double CD and book in a 3 volume series: beginning, intermediate and advanced.
Joe Diorio: Online Market - Books, play-along CDs and videos from one of the most renowned jazz guitar teachers.
Learn Blues and Jazz - It offers the book 'Blues Improvising', links to instructors and free online play-along tunes.
Masterjazz - It offers a catalog of videos, books and CDs.
Mr. C's Revolutionary Chord Voicings - It is a comprehensive new method for the aspiring pop and jazz pianist.
Play Like A Pro - Music improvisation course in Acrobat PDF format.
Richard Daniels Music - Seven books on jazz music theory for intermediate to advanced musicians.
Sher Music - Publisher of jazz materials as well as jazz (The New Real Book), brazilian and latin song books.
The Art of Jazz Trumpet - John McNeil's two volume book with a partial version of the printed book online.