Administrator documentation for Office SharePoint Server 2007 Beta 2 :

• Evaluation for Office SharePoint Server 2007
• Upgrade and Migration Guide for Office SharePoint Server
• Planning Guide for Office SharePoint Server Part 1 (for application administrators)
• Planning Guide for Office SharePoint Server Part 2 (for IT professionals)
• Planning Security for Office SharePoint Server
• Deployment Guide for Office SharePoint Server

Administrator documentation for Windows SharePoint Services v3 Beta 2 :

• Evaluation for Windows SharePoint Services
• Planning for Windows SharePoint Services
• Deployment for Windows SharePoint Services
• Upgrading to Windows SharePoint Services