BBC Sport
Sports Talk - Fans can have their say on the sporting issues of the day, with regular message boards for the English football leagues.
http://news.bbc.co.uk/sport1/hi/sports_talk/default.stm

Sports Central Forums
A sports fans community dedicated to discussing all major sports.
http://www.sports-central.org/community/boards/

Sports Rumor Mill
Sports forums and message boards about favorite players and teams. Predict scores and trash talk.
http://www.sportsrumormill.com/

SportNexus
Offers forums for football, hockey, baseball, basketball, Olympics, and other sports.
http://www.sportnexus.com/

Sports Rant
Sports talk forums and polls on a variety of popular sports.
http://www.sportsrant.com

AllSports.com
Contains various sport forums for various discussions relating to virtually any sport.
http://www.allsports.com/

HoustonSportsTalk.com
Discuss Houstons sport teams such as the Rockets, Comets, Texans, Cougars, and other local college, minor league, and highschool teams.
http://houstonsportstalk.webzila.com

GORP Outdoor Sports Forums
Great Outdoor Recreation Pages allows users to discuss hiking, biking, fishing, snow sports and other outdoor activities.
http://gorp.away.com/bboard/index.tcl

Guardian Unlimited Sport: All Talk
Message board forums with various discussions organized by sport.
http://sporttalk.guardian.co.uk/

Action Chat Sports Forums
Forums, Fantasy Football, Fantasy Baseball information, rankings, and ratings. Complete MLB, NFL, NBA, and NHL statistics from current and historical players. Argumentative though.
http://sportsforum.ws

All-Sports Forums
A forum to talk about basketball, football, baseball and every other sport.
http://peteallbball.proboards22.com/index.cgi

Talking Balls
A message board for UK sport fans, featuring sections on football, rugby, cricket and other sports.
http://www.talkingballs.co.uk

SportsForums.net
Providing discussions on any sport.
http://www.sportsforums.net

Sports Chat Forums
Free Forum based discussion on sports and topics related to sports.
http://www.sports-chat.com

SportsNutz
A sports message forum where all sports and all teams can be discussed. Includes links for online games.
http://sportsnutz.proboards32.com

TheSportForum
Sports site with a friendly atmosphere to talk about any sport topic and team.
http://www.thesportforum.com

Sports Fans Speaking Out
Message boards with sections for specific sports.
http://p069.ezboard.com/bsportsfansspeakingout

The Football n Lager Forum
Forum for fans of football (soccer) and horse racing to discuss tips.
http://p066.ezboard.com/bfreefootballbetsforum

Big Boards - Sports
Directory of message boards and discussion forums dedicated to sports activities.
http://www.big-boards.com/kw/sports/

Fanhome.com
Sports fan community with forums for sports such as baseball, football, hockey, basketball, soccer, wrestling, and NASCAR.
http://www.fanhome.com/

The Sporting Realm
Discussion forums covering NFL, NHL, MLB, NBA, WNBA, college football and basketball, soccer, and related sports topics.
http://www.sportingrealm.com

GoTeamsGo
Message boards for NASCAR, football, baseball, basketball, hockey and college sports. Forums organized by sport and team.
http://www.goteamsgo.com/

ESPN.com Message Board
Offers enthusiasts a place to discuss sports.
http://boards.espn.go.com/boards/mb/mb?sport=espn&id=index

My Sports Lounge
Offers topics including baseball, basketball, football, golf, motorsports, hockey, and college sports.
http://x.mysportslounge.com/forums/index.php?

Steelmuscle
A forum covering various topics such as body and mind, cardio, diet and nutrition, sports, weightlifting and supplements.
http://steelmuscle.freeforums.org/