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All Music Guide: Jack DeJohnette
http://www.allmusic.com/cg/amg.dll?p=amg&sql=11:rxk9ikb6bb79
Biography, and discography with reviews.
DownBeat.com: Jack DeJohnette
http://www.downbeat.com/artists/window.asp?aid=272&aname=Jack+DeJohnette
Biography, photo gallery, and discography.
Jack DeJohnette
http://www.pk.edu.pl/~pmj/dejohnette/
Unofficial home page, created by Piotr Marek, Jr., contains biography and information, discography, photos, and reviews.