THE MILITANT IDEOLOGY ATLAS
The most comprehensive, English-language, ideological analysis of Islamist extremist and terror movements yet compiled; assembled by the Combating Terrorism Center at West Point.
Executive Summary (23 page PDF)
Research Compendium (361 page PDF)
Hat tip to Charles Cameron for the title of this ( actually, many) interesting scholarly work and to Right Truth for the URLs.
UPDATE:
Heh. Plagued by basic reading comprehension problems last night. Title corrected. Gracias, Charles!