* User Interface (UI) and navigation enhancements
* Document management enhancements
* The new Workflow engine
* Office 2007 Integration
* New Web Parts
* New Site-type templates
* Enhancements to List technology
* Web Content Management
* Business Data Catalog
* Search enhancements
* Report Center
* Records Management
* Business Intelligence and Excel Server
* Forms Server and InfoPath
* The ?Features? feature
* Alternate authentication providers and Forms-based authentication
