CBS.SportsLine.com: Tennis - Includes information on the ATP and WTA tours, results, schedules, rankings. - http://www.sportsline.com/tennis
ATP Tennis - Official site for the organization overseeing the professional men's tour. - http://www.atptennis.com/
National Capital Tennis Association - Contains a club directory and information about membership, tournaments and leagues. - http://www.ottawatennis.com/
Canadian Tennis Association - News and information on Canadian tennis and players, the Tennis Masters Series - Canada men's championships and the duMaurier Open women's championships. - http://www.tenniscanada.com/
Junior Tennis - Includes information on USTA national and ITF tournaments, rankings, coaching, player profiles, and interviews. - http://www.juniortennis.com/