General Classics Resources:

Ancient Greek World 
http://www.museum.upenn.edu./Greek_World/
Abzu: Ancient Near East 
http://www.etana.org/abzubib
The Ancient World Mapping Center
 http://www.unc.edu/awmc/
Egyptology Resources
 http://www.newton.cam.ac.uk/egypt/
The Internet Ancient History Sourcebook
 http://www.fordham.edu/halsall/ancient/asbook.html
The Internet Classics Archive
 http://classics.mit.edu/

Museums:

The British Museum www.britishmuseum.org/
The Louvre, Paris 
http://www.louvre.fr/
The Metropolitan Museum, New York 
http://www.metmuseum.org/