Professional U.S. Sports Leagues

National Football League
www.NFL.com

National Hockey League
www.NHL.com

Women's Tennis Association
www.sonyericssonwtatour.com/1/

Men's Tennis

http://www.atptennis.com/1/en/home/

National Basketball Association
www.NBA.com

Women's National Basketball Association

www.wnba.com

Professional Golf Association
http://www.pga.com/

Ladies Professional Golf Association
http://www.lpga.com/

All Collegiate Athletics
www.ncaa.com

X-Games
www.expn.go.com/expn/index

Major League Baseball
http://mlb.mlb.com/index.jsp

Major League Soccer
www.mlsnet.com

Olympic
www.olympic.org

Courtesy of The Poynter Institute:
2008 Summer Games (Beijing, China)
Google News Search: "Olympics"
http://news.google.com 
Technorati Weblog Search: "Olympics" 
http://www.technorati.com

Official Olympic Web sites
Beijing Olympic Games

http://en.beijing2008.cn/
Beijing 2008 (International Committee)
http://www.olympic.org/uk/games/beijing/ 

International Olympic Committee
http://www.olympic.org

Olympic Committeeshttp://www.olympic.org/uk/organisation/noc/index_uk.asp 
U.S. Olympic Committee
http://www.usoc.org/
2010 Vancouver Olympic Winter Games
http://www.vancouver2010.com/en

Additional Resources
NBCOlympics.com
http://www.nbcolympics.com/
CNN
http://topics.cnn.com/topics/summer_olympics
ESPN
http://sports.espn.go.com/oly/index
The New York Times
http://topics.nytimes.com/top/reference/
timestopics/subjects/o/olympic_games_2008/
Washington Post
http://washingtonpost.com/
wp-dyn/content/sports/index/olympics
USA Today
http://www.usatoday.com/sports/olympics 

CBC
http://www.cbc.ca/olympics/
Wikipedia
http://en.wikipedia.org/wiki/2008_Summer_Olympics
Olympic Studies Centre
http://blues.uab.es/olympic.studies/