There is a patterns study group that meets weekly
in the Department of Computer Science at the 
University of Illinois at Urbana-Champaign. 
In fact, we study more than just patterns, but we study a lot of patterns.
Non-university people are welcome.  See
http://wiki.cs.uiuc.edu/SAG/Weekly+SAG+seminar (BrokenLink 20070524)

-RalphJohnson
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CategoryGroup CategoryPatternsGroup