3 links
American Contract Bridge League
acbl.org
Organizes the game in North America. Tournaments calendar and results, shopping, members information. Official site.
Bermuda Duplicate Bridge Club and Unit 198
bermudabridge.com
Presents game schedules, upcoming events and tournaments, lessons, results and information.
District 18 Bridge
asumi.org
Club information for Alberta, Idaho, Montana, Saskatchewan, Utah, and Wyoming.