Here are more sites you might enjoy or find useful:

www.artofmonet.com
the leading internet resource on the life and work of turn-of-the-century genius Gustav Klimt

www.artofhammershoi.com
the leading internet resource on the life and work of Danish artist Vilhelm Hammershoi

www.artchive.com
www.artcyclopedia.com
major art history reference sites

www.classicartrepro.com
for hand-painted reproductions of your favourite paintings