Addict Sports
   Includes forums for general and in-depth baseball topics including history and trivia.
   http://www.addictsports.com/baseball/

Baseball Crack
   Various forums for baseball fans. Requires registration.
   http://www.baseballcrack.com/

Baseball FAQ
   An interactive question and answer group that discusses a wide array of baseball topics.
   http://www.faqfarm.com/Sports/Baseball/

Baseball Fever
   Baseball trivia, history and current events are discussed by fans of the national pastime.
   http://www.baseball-fever.com/

Baseball Forum
   Covers recent news events, fantasy baseball and specific team discussion.
   http://www.baseballforum.com/

FanHome - Baseball
   Message board community focusing on Major League Baseball with team forums, general baseball discussions, chat and social networking options.
   http://baseball.fanhome.com

Major League Forums
   An unofficial meeting place for baseball fans worldwide. Includes threads for the current season as well as news.
   http://www.majorleagueforums.com/

Strike 3
   Team discussion as well as vocalization concerning fantasy baseball, the minor leagues and current news.
   http://strike3forums.com/forums/

We're Talking Major League Baseball
   Forums for each team (membership required to view and participate).
   http://damnitmike.proboards10.com/