NBA Official Website - http://www.nba.com
This is the most authoritative official NBA website. If you have good English skills, you can get the latest NBA news in the first place.
PR: 7 Major League Soccer (MLS) - http://www.mlsnet.com
The official site of Major League Soccer, the American soccer association. It features news, match results, rankings, game reviews, league and team statistics, as well as links to other soccer sites.
PR: 7 Women's National Basketball Association - http://www.wnba.com
The official website of the Women's National Basketball Association in the United States, including news and features, player and roster information, schedules, match results, and chat rooms.
PR: 7 NBA China Official Website - http://china.nba.com
The official NBA website in China, supported by Sohu. It includes NBA game updates, player profiles, schedules and results, game videos, and game pictures.