OpenOffice works well with the Mac, the PC, Linux, and so on. It works so well with Microsoft Office that you can easily share documents with folks that don't use OpenOffice; no hassles at all. Fully-featured, versatile, powerful Office Suite.
This site provides comprehensive, web based training for OpenOffice. These OpenOffice tutorials will teach you everything you need to know to become an OpenOffice guru in just an hour or two.
TeamDrive is the solution for companies and individuals to share data across LAN boundaries and manage documents in distributed organizations. Work – anywhere, online and offline – at any time always securely! TeamDrive is an OpenOffice.org alternative to Microsoft Groove/Sharepoint.