britishtrails - A source of information for MTB events, calendar for the British Isles, routes, news, trails, gallery, links, xc, enduro, trailquest, and downhill.
Fat Tyre Mountain Biking (FTMB) - Information and fun about British Downhill and Freeriding, interviews, race reports, articles, news, galleries, product reviews, buy and sell, classifieds, bulletin boards
Gorrick MBC - Organise mountain bike cross country events in Berkshire, Hampshire and Surrey. Calendar of events, results and entry details.
IMBA-UK - Promotes environmentally sound and socially responsible mountain biking and offers trail building advice.
More Dirt - A mountain bike community site and guide to trails and routes in the UK.
Mountain Bikers United Kingdom - Mountain biking site arranging rides around the UK with a forum, photo galleries and ride reviews. Also the home of Bike Weasel.
