Lets create an instant network of computers and smart devices just by getting them connected to each other. By Apple Computer, Inc.

A collaboration software environment that provides a "virtual building" where teams can communicate, collaborate, and share information, regardless of their geographic location. [Open source, Public Domain]

A collaborative framework and environment containing a set of applications. Now is closed. Authors are making it final materials available to researchers and other interested parties.

Cognitive Agent Architecture, a Java-based architecture for the construction of large-scale distributed agent-based applications. [Open source]

IBM's alternative to JavaSpaces.