PBS
Pbs: American Roots Music
If teaching a unit about the history of popular music in America, this PBS web site supporting their four-part TV broadcast of a few years ago would make a great resource. Includes lesson plans and oral histories too.
Other
Famous Singers
Biographical profiles of famous singers in major musical genres. Includes photo and links to snippets of their songs.
Rock and Roll Hall of Fame
Rock & Roll Hall of Fame: Bonnie Raitt
Covers biographical details on Grammy winning blues singer Bonnie Raitt, a 2000 inductee into the Rock and Roll Hall of Fame. Includes a timeline of key events and essential songs list.