Blacktwitters

"Blacktwitters is an online niche twitter directory targeted especially for the African American and urban twitters. It was launched August 10 2009 by Duane Washington (@DuaneWashington). The site lets you search categories (politics, celebrity music, TV, etc.) to see who are the most popular African American twitters that are known to tweet. Blacktwitters is the definitive source for African American twitters"