Scott Alexander
Red Hot jazz.com: Tom Brown's "Jass" Band
Stop here at RedHotJazz.com for some early history of Dixieland jazz, dating to the early 1900's and one of the first known jazz bands.
Other
Will Smith, Fresh Prince
Contains a biography of rapper/actor Will Smith (aka The Fresh Prince), among the first Grammy-winning rap artists.
Other
Davey D's Hip Hop Corner: History of Hip Hop
This site offers an extensive history of hip hop and rap, for those who want to know where it all came from!