Mevlana.net - Mevlana Celaleddin Rumi
Site owned by Rumi's own family, one of the oldest families in the world. Site includes the family tree and explanations of Sema, the ritual dance of Mevlevi's.

IndraNet.com - Rumi Poetry
A small site, including some poems by the Sufi master and a brief biography.

Rubaiyat of Omar Khayyam
English translation by Edward FitzGerald.