E-Cats Bridge http://bridge.ecats.co.uk
This site provides news and information from around the bridge world, as well a shop where one might sell their bridge books or software. Also available is an area where one can download a convention card editor, read the online laws, or the differences between online laws and the 1997 Laws of Duplicate Contract Bridge.

Great Bridge Links www.greatbridgelinks.com
Jude Goodwin-Hanson provides a comprehensive list of world bridge news, sites and links, including software, online clubs, live clubs, online bridge courses, bidding systems and conventions, bridge holidays, and much, much more. We recommend Great Bridge Links News, a free newsletter with current information.

Bridge Talk bridgetalk.com
This is simply a place to talk about bridge - hands, systems, online bridge etc. - with players from all over the world. Expert help on any laws related questions is also freely available to everyone in the International Laws and Rulings forum, with a panel headed by David Stevenson.