London Cycling Campaign - A membership organisation that campaigns for cyclists in London. Services include cycling insurance policies, cycle route maps, rides and meetings. Central London CTC - Meet us at Central London train stations and escape by train to the edge of London or beyond, ride to pub lunch then on to tea. Different venues every week. Easy, medium, and hard rides. De Laune CC - Cycling club founded in 1889, providing illustrated descriptions of events; off-road, on track and social. There is a diary, email list of members, and contacts for officers based in Peckham. London Cyclist Blog - Provides tips, news, routes and buying guides. Tandem Cycling Club of South East London (and SE England) - Information about events, membership, and merchandise. Also includes a section on members' long-distance tandem trips. Critical Mass London - An informal and anarchic celebration and promotion of cycling; information about their monthly rides, with an archive and links to related resources.