- Black Baseball's Negro Baseball Leagues - Devoted to the preservation of the leagues. Features photos, sound clips, profiles and information on players and teams.
- Sports Celebrity Marketing S.C.M. Inc. - Booking engagements and appearances for many of the surviving veterans; offers details of staff, clients, and contacts.
- Negro League Baseball Museum - Located in Kansas City, Missouri. Offers history, exhibits, news, events with online store selling apparel, books, videos, gifts and collectibles.
- John Henry "Pop" Lloyd Committee - Dedicated to preserving the legacy of John Henry "Pop" Lloyd and of Negro League baseball for future generations.
- Negro League Baseball Players Association - News, features, player profiles and history of players' contribution to baseball and American culture.
- Negro League Baseball Shop - Order Negro and Cuban League caps, apparel and jackets.
- Negro League Baseball.com - Features event news, history, biographical profiles of former players, team histories, and a forum.
- Negro League Art Prints - Offers player art prints including Satchel Paige, Josh Gibson, Cool Papa Bell and all-time league lineup.
- David Marasco's Negro League Writings - A collection of his articles about the league as well as a few written by other Diamond Angle authors.