Reccomended Links:

Art.net
Helping artists come online to the Internet

ArtNetwork

ArtNetwork has been helping artists empower themselves since 1986 through its books, artist directories, mailing lists and most recently through its online gallery and business software.

Art Quest
Whether you're an artist, collector, consultant, dealer, designer, gallery, publisher or hobbyist extraordinaire the easy-to-use ArtQuest process will facilitate your acquisition or sale.

World Wide Art Resources
The largest site for contemporary art, art news, art history, contemporary artist and gallery portfolios, online since 1995.