Banner Promotions
US boxing promotions company site, with information on fighters, events and card results.
http://www.banner-promotions.com/

Don King Productions
Don King's Florida-based promotion company and home of many boxing champions.
http://www.donking.com

Forum Boxing, Inc.
California based promotional firm formerly operating out of the Los Angeles Forum.
http://www.forumboxing.com/

Top Rank Boxing
Bob Arum's Las Vegas-based promotion company, and home of many boxing champions.
http://www.toprank.com/

World Championship Boxing on HBO
Schedule of broadcast fights, fighter profiles and chat.
http://www.hbo.com/boxing/

F and F Berns Boxing
Provides photos of the stable's fighters, events and history. 
http://www.bernsboxing.com

Boxing.de
Articles, records, profiles, video and audio features of the Klitschko brothers and other world class fighters. In German and English.
http://www.boxing.de

Probox
Global boxer and manager listings, rules, weight classes and shop.
http://www.probox.net/

One In A Million Boxing
Event information, trainer profiles, photograph gallery, and information about the Indiana and California facilities.
http://www.oneinamillionboxing.com/

So You Wanna Fight
Pay Per View of boxing contests for bikers, bouncers, brawlers, red necks and ruff necks.
http://www.soyouwannafight.com/

Showtime Boxing Network
Offer upcoming schedules and results for the television network. [Available to US residents only]
http://www.sho.com/site/boxing/home.do?source=shocom_nav