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PeerAware group chat allows you to create discussion groups where hundreds of people can chat at once. It helps geographically spread teams communicate and work together. For groups of less than ten members it is free to use
Knowledge management software

* Instant message with everyone at once
* One-on-one chats for privacy
* Share documents with the group
* See earlier discussions in chat history
* Work together on a shared whiteboard

is knowledge management software. It helps create knowledge networks based on connected users, shared documents and chat history. Find the information you seek by chatting with team members, browsing shared folders or with the search functionality.

File size: 1 MB (freeware for up to 10 user)
Platform: Windows 2000/XP/Vista