( there's more stuff here than you can find! - ed.)Artpool Projects (1992-2006) which included Artistamps
Bélyegképek 1987 Museum of Fine Art, Budapest (via Artpool)
The Artistamp Collection The CD ROM version of Guy Bleus's Collection (via Artpool)
Artistamp Gallery at the Electronic Museum of Mail Art (EMMA)
old: http://www.actlab.utexas.edu/emma/Gallery/artistampgallery.html ; url updated c.201505 Artistamp Inc. The Resolution of Michael Bidner's Artistamp Project.
('404' c.2009 ed.) cf. below International Art Post Gallery Stamps produced by Banana Productions .
Mike Bidner Artistampex: A Tribute
Michael T. Bidner Artistamps
Dominique Johns JCM's permanent exhibition of Bugpost stamps
Alyce Cornyn-Selby Artistamps, Rubberstamps, & Faux Postage
Lia Garavini Artistamps
Michael Thompson Artistamps and much, much more.
OR Post : Artistamp prints by geORge brett
Sedang The Postage Stamps (cf. Bruce Grenville)
Steve Smith DAZE of ISSUE, humorous postage stamp parodies.
International Art Post Have your personal artistamps printed and perforated!
Artistamp Publisher in Paris
Stamp Fakes & Forgeries in the Stamp Yellow PagesWeird Stamps Identify your weird stamps and help others indentify theirs.