Wikipedia
Wikipedia's take on the Rubaiyat, with links to a number of authors I have yet to find in print




OK On Life
Very artistic take on the Rubaiyat that breaks it up into manageable bite-sized chunks for the reader. For each quatrain this site provides a facsimile of the actual Persian script, a literal translation, meaning, Fitzgerald's translation, and a German language translation for each quatrain




Parody: Bridge
An illustrated parody of the Rubaiyat by a lady fond of the card game of bridge




Parody: Kittens
An illustrated parody of the Rubaiyat from the perspective of Persian kittens. Cute actually




The Keeper
Site about the movie The Keeper: The Legend of Omar Khayyam. Who knew they made a movie about it? Trailer looks very interesting




Cubic Solution
Short mathematical paper on Omar Khayyam's geometric solution of the cubic




Arabian Nights
Electronic Literature Foundation's presentation of several translations of the Rubaiyat in user-definable formats




The Persian Poet
Incredible visual interface for Fitzgerald's translation