Greek
This work is licensed under a Creative Commons Attribution 3.0 Unported License. It is attributed to Ronald Saunders, and the original version can be found here
Culture
Didaskalia (online journal for ancient drama): http://didaskalia.net
The Ancient City of Athens: http://www.stoa.org/athens/
Multimedia
The Internet Classics Archive: http://classics.mit.edu//index.html
The American Classical League: https://www.aclclassics.org
Corpus Vasorum Antiquorum (Catalogue of Ancient Vases): http://www.cvaonline.org/cva/
Beazley Archive (for ancient art): http://www.beazley.ox.ac.uk/index.htm
The Oracle of Loxias: http://www.users.globalnet.co.uk/%7Eloxias/search.htm
The Perseus Project (Texts, translations, art and archaeology of Ancient Greece and Rome): http://www.perseus.tufts.edu/hopper/
Medicina Antiqua (Resources for the study of Greek and Roman medicine): http://www.medicinaantiqua.org.uk
Lexicon Iconocagraphicum Mythologiae Classicae (Lexicon of mythological figures and images with articles describing them): http://www.rzuser.uni-heidelberg.de/%7Em99/