PBS
Pbs: Jazz: Teddy Wilson
Part of the larger site, Jazz by PBS and Ken Burns, this page highlights the life of Teddy Wilson, one of the first black musicians to play with prominently white artists. Biographical information is from the New Grove Dictionary of Jazz.
Scott Alexander
Red Hot Jazz: Benny Goodman and His Orchestra
Lots of information on Benny Goodman with links to related subjects: his music, his band members, his bands and orchestras.
Encyclopedia Britannica
Encyclopedia Britannica: Milt Hinton
This entry from Encyclopedia Britannica features Milt Hinton, an African American jazz musician, a highly versatile bassist who came of age in the swing era and became one of the favorite bassists of post-World War II jazz.
Other
All About Jazz: Fletcher Henderson
A biography of Fletcher Henderson, including suggested listening and suggested reading materials.
Encyclopedia Britannica
Encyclopedia Britannica: Guide to Black History: Duke Ellington
Biography of Duke Ellington, one of the originators of big band jazz, and a noted composer.
My Hero Project
My Hero: Scott Joplin
This article includes information on the life and musical contributions of Scott Joplin, the composer who gave us such songs as "The Entertainer" and "The Maple Leaf Rag."