DoD DACS Software Architecture Topic Area - http://www.dacs.dtic.mil/

A Testbed for Analyzing Architecture Description Languages (ADL) - http://www.stormingmedia.us/55/5569/A556982.html

Cetus Links - Architecture & Design - http://www.cetus-links.org/top_architecture_design.html

Software Architecture Technology Guide - http://www-ast.tds-gn.lmco.com/arch/guide.html

STARS Software Architecture Papers - http://www.stormingmedia.us/55/5569/A556982.htmldarpa/Papers/ArchPapers.html

Software Engineering Institute (SEI) Software Architecture Definitions - http://www.sei.cmu.edu/architecture/definitions.html