It is implemented through interpreters, dynamically compiled interpreters, and compilers.

It is a high productivity and fun environment to use for well designed and well factored applications.

It is available on a number of platforms and a variety of Operating Systems.

(Shamelessly pasted from a comp.lang.smalltalk post :) RobinBarendregt

The BSUG, or Belgian Smalltalk User Group has a website http://www.bsug.org that contains lots of information on Smalltalk and its Belgian users. DavidGrietens