Alan Dunn - Raffles. Web-site created 1999; community art projects on the Raffles Housing Estate in Carlisle between 1996-1999
Kirsten Klöckner - Edition Klöckner, commissioned editions and multiples
Artskills - community art projects based in Liverpool, including David Jacques and 'Unheard Voices, Unseen Lives'
Bill Drummond's collected writings at The Penkiln Burn Press
Pinsharp 3D, Liverpool: Jim Sharp's resource for all things anaglyph, 3D and stereo
Edition Staeck, Heidelberg, editions and multiples
Another Bill Drummond venture, 2000 (removed 2001?)
The Differential Geometry of the Sphericon
Easy step-by-step method of producing 3D anaglyph pictures
Roger Lee's site, host to Raffles amongst many others and including Chapple & Woods' billboard
Maiden's updated review of commercial billboards
Archive of billboard works at Revolution Gallery, Detroit
Claire Hope's 'had it can't believe you could' billboard, Preston 2001
tenantspin - the interactive broadcasting channel in Liverpool (listed under 'channels')