Abu Al-Nasr Al-Farabi
Extensive information on the work and legacy of this medieval Arabic philosopher.
Memoirs of Popular Delusions: Alfarabi
http://www.worldwideschool.org/library/books/relg/socialeccltheology/MemoirsofPopularDelusionsV3/cha
Passage from this compendium by Charles Mackay.
Muslim Philosophy: al-Farabi, Abu Nasr
Article discussing his life and teachings on metaphysics, epistemology and politics.
Wikipedia: Al-Farabi
Brief entry from this openly-edited reference work.