American Youth Soccer Organization (AYSO): The official site for this volunteer-driven youth soccer program for kids 4-1/2 to 19 years old. Includes FAQ, history, membership information, rules and guidelines, news, events, programs and tournaments. Also features special sections for coaches, referees, instructors, administrators and parents

Major League Soccer: The official site with news, standings, clubs, statistics, players and videos

National Women's Soccer League (NWSL): Official site of the professional soccer league

The United States Adult Soccer Association (USASA): Governing body of amateur adult soccer. Calendar, coaching and referee programs, tournaments and contact directory