Just a few links. There is so much out there, so many sites to vistit, that any list of links is bound to be profoundly lacking. That said, here are a few of my favorites:

The Barnard Atlas of our Galaxy Stunning photographs of star fields
Mr. Eclipse The eclipse photography resource
Classical Chinese Painting A very good selection
Ukiyeo Gallery Fine Japanese wood blocks
Art of the American Snapshot Photography
Photography Now Photography
FILE magazine Photography
EveryDayScene Photography
Open Yale Free, online classes at Yale University
Koans Zen Stories
Some good advice From David Foster Wallace
Photogtaphic Memory From me
The Eclipse By James Fenimore Cooper
International Pschoanalysis Great site now with Photography Friday
Picasa Garden of Monet Excellent Cooliris-enabled art images
The Art Browser Easy way to browse mainstream art