Smalltalk Reflections (podcasts)
Concerning Pharo (Medium blog)
Amber – Smalltalk for the web browser
Dolphin Smalltalk for Windows
Smalltalk MT – high performance Smalltalk for Windows
GNU Smalltalk – Smalltalk without the IDE
Smalltalk/X – a specialized flavour for commercially-supported, company solutions
Prof Stef (video)
Pharo Programming Environment (video)
I love this page which very nicely summarizes the syntax:
A more advanced Seaside tutorial – our own little Reddit in Smalltalk!
Another great Seaside tutorial from James Foster!
Squeak: Learn Programming with Robots (PDF download)
The book “Streamlined Object Modeling: Patterns, Rules, and Implementation” can be recommended, as can “Smalltalk Best Practice Patterns.” Then there are these books by Andres Valloud.
Frameworks and Tools
Seaside is the leading Smalltalk web framework for the server side.
For consultants, startups, and software houses, flow is a full-stack framework from server side to client side that is designed to be intuitive and powerful. Great for prototyping!