The Museum of Online Museums
coudal.com/moom.php
This elegantly-designed portal links to established museum and gallery sites such as those run by the Museum of Modern Art, The Bauhaus Archive and The Art Institute of Chicago. It will also introduce you to countless other online collections, from Van Gogh's letters to Chinese postage stamps to Manhole Covers of the World. For more, go to the MoOM Annex.