The ancestor (with Simula) of modern object lanugages.

• SmallTalk/X: Free (?) Smalltalk implementation.
  Last modification on May 25 2000.
• Smalltalk/X: implementation of the Smalltalk language.
  Last modification on December 1 2000.
• SmallTalk Resources: List of SmallTalk links: programming environments, lecture notes, applications.
  Last modification on May 31 2000.
• Squeak: Open source, super portable, new Smalltalk-80 implementation, by Smalltalk's inventors, the original, Xerox PARC, Alan Kay team, now at Disney. Runs on many platforms, now including Linux for x86 and PowerPC. "Next to universal access, malleability is the prime figure of merit for Squeak. It is our intention for Squeak to evolve."
  Last modification on October 7 2000.
• SmallEiffel: The GNU Eiffel Compiler
  Last modification on November 14 2000.