Office collaboration server O3Spaces
O3Spaces is a cross platform collaboration server with integration in the desktop, OpenOffice.org and a browser interface. In this environment a team stores their documents, if ODF or MS Office format, on a central server and creates versions with every change saved. users can receive notifications if any document they have in their workspace changes.
With O3spaces users can share documents on different OS platforms, such as Linux, Windows or Mac OS X. In addition the server provides shared calendars for scheduling meetings. A workflow engine can route documents to different users for review or approval.
All documents are secured by access rights so only authorized users can access them. The user management can be integrated with any LDAP server.
The version for self installation, the professional edition, costs 295 Euros (~ $375) , for five-users. A 100-user license costs 5,900 Euros (~ $7,600). O3Spaces is also available as an on-demand version or hosted application service.