AlwaysSports.com  
   Find a partner, submit sport photos, post on sport message boards.
   http://www.AlwaysSports.com/

Buddyup  
   Find another person with the appropriate skill doing your sport in your area. Over 20 sports including running, biking, skating, golf, tennis, and skiing.
   http://www.buddyup.com/

Adventure Contact  
   Collection of Yahoo groups intended to match activity partners.
   http://www.geocities.com/adventurecontact2/

Match Maker  
   Find a player, team or partner to play with by registering.
   http://www.sportisgood.com/sp/Match

PlayerLists.com  
   Free service allowing any amateur player of any age to find a team in many sports. Visitors can post "Player Resumes" or "Team Ads" and be notified when a match is found.
   http://www.playerlists.com/

Aimshare  
   Offers free service for finding sports partners, activity partners, and travel companions.
   http://www.aimshare.com

Women's Exercise Network  
   Locating partners for a variety of sports, primarily for women. United States.
   http://www.womensexercisenetwork.com/

LeisureMates  
   Free listings and locating new people to join you in your chosen sport.
   http://www.leisuremates.com