pegboard is a social bookmarking service that lets you save, search, share and tag your bookmarks with people all over the world!
An open source collaboration and project management tool built on top of Drupal.
A competitor of Basecamp.
Online Whiteboard Flash Application from GE.
An open source software platform for creating collaborative multi-user online applications. It features a network architecture that supports communication, collaboration, resource sharing, and synchronous computation among multiple users.
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