Around The World, BikeShed

North America

http://www.pedalpower.org - Vancouver based group who develop and promote the use of pedal powered technology, and have an excellent website.
http://www.bikecollectives.org - attempts to provide a centralised list of North American community bike groups.

smerig (http://www.ostade233.nl/clubs/smerig.html) - a Dutch cycling collective that a few bikeshed volunteers have been involved with. [Site in Dutch)
http://bikekitchen.net - Bike Kitchen Vienna
http://hackneybikeworkshop.com- a community bikeshop in London
http://leslanternesrouges.blogsport.de - Red Lanterns in Berlin
http ://kerekparosklub .hu /bike -kitchen -budapest - Bike Kitchen Budapest
http ://www .heureux -cyclage .org / - L'heureux cyclage, which is a Federation of French bike recyclye workshops

Plus, here is Stevie T's report of the Bike workshops he has encountered in France and Belgum