CodeWeb: Data Mining Software Development Experience in Open Source Code
   An GPL'ed tool for data mining library usage patterns in existing applications. Can be used to guide and check usage of a software library much like a tutorial. Future work includes data mining other kinds of development experience such as evolution
   http://codeweb.sourceforge.net/

Composable Software Systems
   We develop new models, theories, methods, languages, and tools for classifying, specifying, analyzing, and designing software systems beyond the component level. This support could lead to substantial reduction in maintenance costs, im
   http://www.cs.cmu.edu/afs/cs/project/compose/www/index.html

Prosperity Heights Software
   Offers consulting, training, and information on domain-specific engineering, reuse-driven process improvement, and adaptable components for software product line reuse.
   http://www.domain-specific.com/

The Reuse RKT
   Search and browse listings for more than 3000 open source applications, libraries, and functions. Includes links to C and Unix programmer's FAQs and other references. Man pages link directly to source code.
   http://www.rocketaware.com/orbit/Lo/

Venari Project
   The thrust of the Venari project at Carnegie Mellon University is addressing the problem of search, hence the name. We touch upon areas in programming and specification language design, semantics, and implementation; concurrent and distributed systems;
   http://www.cs.cmu.edu/afs/cs/project/venari/www/home.html