URLs listed in this category:
About.com: Art History
Online community and resource guide for the artists and art periods of the past.
http://arthistory.about.com/
Andres Blaisten Museum
Masterpieces of Mexican Art from the XIX and XX Centuries from private collections.
http://www.museoblaisten.com/
ARC International - The Art Renewal Center
Offering biographical information and high-resolution images of many paintings from the great masters of the 19th century.
http://www.artrenewal.org/