Joe's Tennis String Forum  
   Experiences with tennis strings and racquet stringing. Includes ratings of different brands, tips on stringing, and a price table for racquet stringing mail-order services in the USA.
   http://www.stringforum.net/

MensTennisForums.com  
   Large range of men's tennis message boards with a focus on the professional tour throughout the world.
   http://www.menstennisforums.com/

Racquety Yak  
   A forum for fans, with multiple ways to contribute, including message boards, chat, and user submissions.
   http://racquety-yak.com/

Tennis Forum  
   A place to discuess a variety of tennis topics.
   http://www.tennis-forum.net

tennis opinions discussion forums  
   A threaded forum where the topics of discussion are general tennis, equipment, and lesson related.
   http://www.tennisopinions.com

Lawn Tennis Magazine - Message Board  
   A forum that discusses professional players, tournaments, and other tennis related topics. Includes a restricted area for subscribers to the magazine.
   http://www.ltmn.com/forums/

Tennis Trends Online Forums  
   A place to discuss tennis, including: equipment, professionals, tournaments, rules of play, and tips and tricks.
   http://www.tennistrends.com

TennisGods  
   Forum to discuss racquets, strings, technique, professional players, and injuries.
   http://www.tennisads.com

Tennis Forums .Net  
   Discuss tournaments, players, equipment, and all other aspects of the game.
   http://www.tennisforums.net

World of Tennis  
   A tennis forum, where you can discuss about the WTA and ATP Tour!
   http://s3.invisionfree.com/WTA_World/index.php?act=idx