Found on the cryptome website today a Spanish paper 'The March 11th Terrorist Network: In Its weakness lies its strength', published in December 2005. So you may have seen this before.

Written by analysts it needs a thorough read, forty pages, with several charts (alas many too small on the VDU to read properly).

http://www.ub.es/epp/wp/11m.PDF

davidbfpo