Other Smalltalks

The current most favorite "other" smalltalk is Squeak.
Parcplace... err, Digitalk-Parcplace... er, Obje... Cincom's Visual-Works is probably the most known commercial smalltalk. They have a very good freely available non-commercial version on their website.
Smalltalk Agents is supposedly still alive and coming out with a new version sometime.
VisualAge ST is also still alive and STILL (confirmed 2000-10-17) being used to implement parts of VisualAge for Java (just the GUI though).

If you have others you'd like to see listed, email me.