Swazoo (Smalltalk Web Application Zoo) is an open source, vendor agnostic, dialect neutral Smalltalk HTTP server with resource and web request resolution framework
Abora is a hypertext system supporting fine-grained links, transclusions and user link filtering. It is inspired by Ted Nelsons Xanadu and Udanax-Gold by XOC.
Squeak is an open, highly-portable Smalltalk-80 implementation providing platform-independent 2d and 3d graphics, sound, and network access. Active development of Squeak is going on elsewhere than SourceForge now, meet us at squeak.org.