UIUC Smalltalk/Patterns Group - At Department of Computer Science, University of Illinois, Urbana-Champaign. - http://st-www.cs.uiuc.edu/research-gp.html
SmallTalk User Group - Contains links to user groups around the world. Also contains links to object oriented groups, FAQs, and news groups. - http://www.smalltalk.org/usergroups.html
CSTUG: Chicago Smalltalk User Group - Announcements, upcoming seminars, vendor list, links to other groups, mailing list. - http://www.bobjectsinc.com/cstug/
SSUG: Swiss Smalltalk User Group - On Wiki: mail list, job postings, next talk, events, Smalltalk developing firms. - http://iamwww.unibe.ch/~ssug/
GSUG: German Smalltalk User Group - Good software and demonstrations understandable to any Smalltalk user as source code is English, little other English. - http://www.gsug.org/
Smalltalking - A project for studying Virtual Objects Environments. Site, mailing list, meetings, events. - http://www.smalltalking.net/indexe.htm