If you were looking for good high-level info on .NET 3.0 check out following whitepapers from Microsoft:
- Introducing .NET Framework 3.0
- Introducing Microsoft Windows Workflow Foundation
- Introducing Indigo (aka Windows Communication Foundation)
- Introducing Windows Presentation Foundation
- Introducing Windows CardSpace
These whitepapers give important information for connecting business and technology with respect to .NET 3.0.