News and Scores

CNNSI | ESPN | USA Today | Yahoo!

Professional Leagues

• Auto Racing
  Formula 1 | NASCAR
• Baseball
  Major League Baseball | Minor League Baseball
• Basketball
  NBA | WNBA
• Cycling
  Le Tour de France | USA Cycling
• Football
  NFL | Arena Football League
• Golf
  PGA | LPGA
• Hockey
  NHL | AHL
• Soccer
  FIFA (World Cup) | MLS
• Tennis
  ATP (Men's) | WTA (Women's)

College

NCAA Sports | Statistics

History

• Baseball Almanac
  Historical archive of players, awards, statistics, records, quotes, etc.
• Olympic Games
  All the games since 1896.
• Major League Baseball: History
  Awards & Honors, Commissioners, Team Histories, This Week in History.

Recreation & Outdoors

• Active.com
  Register for thousands of events and activities (includes local race schedules).
• Adventure Network
• Bird Checklists of the United States - Northern Praire Wildlife Research Center
  Checklists are designed to help birdwatchers decide where to visit.
• GORP (Great Outdoors Recreation Page)
  Extensive resource for all aspects of outdoor sports, adventure, fishing, and travel.
• National Park Service
  Official gateway to the sites and services of the National Park Service.
• Outside Online
• Recreation.gov
  Recreational opportunities on government lands.
• Runner's World
  Training program ideas for runners and equipment reviews.
• SailNet
  Resources for every level of sailor.
• United States Golf Association
  Learn about rules of the game, handicaps, etiquette, and more.