Ancient Greek

Temple University: Greek Drama and Culture - Resources relating to the course curriculum, including background materials, study guides for major tragic and comic works, and links to secondary materials on ancient plays and Athenian culture.
http://www.temple.edu/classics/dramadir.html

Ridgeway's Theory of the Origin of Tragedy - Treatise suggesting that Greek Theatre evolved not from the Dionysian festivals, but rather from ancient worship of the dead.
http://www.theatrehistory.com/origins/ridgeway002.html

Poems by Greek Dramatists - An index of poems by the dramatists of ancient Greece.
http://www.poetry-archive.com/collections/greek_dramatists.html

Project Perseus: Texts and Translations - Scholarly Greek text with English translations, including nearly all the surviving Greek dramas.
http://www.perseus.tufts.edu/Texts.html

Greek Theatre Index - Index of articles on ancient Greek theatre.
http://www.theatrehistory.com/ancient/greek.html

Greek Dramatic Criticism - An overview of dramatic criticism in ancient Greece.
http://www.theatredatabase.com/ancient/greek_dramatic_criticism_001.html

Aristotle, Classic Technique, and Greek Drama - An analysis of the beginnings of dramatic criticism, focusing on the principles of Aristotle.
http://www.imagi-nation.com/moonstruck/spectop007.html

Solar Myths, Tree Spirits, and Totems - William Ridgeway's 1915 essay examining the history and importance of solar myths, tree spirits, and totemism in the development of Greek tragedy.
http://www.theatrehistory.com/origins/ridgeway003.html