The Zappa family web site, with plenty of authorized information and Zappa products.
World of Links Complete
Home of bassist Tony Levin.
Tony Franklin: English fretless bassist, who has appeared with The Firm, Blue Murder, Whitesnake, Tony MacAlpine, Gary Hoey, etc.
Buddy Guy's Legends - home of the blues master.
Official page of Shrapnel rock/fusion guitarist Greg Howe.
Total information site on all things Deth.