In order to get to know who is using Smalltalk in general, and specially 
Squeak, in Brazil I have set up a mailing list at

  http://groups.yahoo.com/group/st-br/

and a web site (no content yet) at

  http://www.smalltalk.org.br

and a Swiki at

  http://www.merlintec.com:8080/Smalltalk/

-- Jecel