Following are some of the free SQL Server 2008 resources available from Microsoft. Check them out before they are gone!
eBook – Introducing Microsoft SQL Server 2008
Clinic – What's New in Microsoft SQL Server 2008 for Enterprise Data Platform
Clinic – What's New in Microsoft SQL Server 2008 for Business Intelligence
Clinic – What's New in Microsoft SQL Server 2008 for Database Development
Clinic – New Features of Microsoft SQL Server 2008 Reporting Services
Or better yet book mark the SQL Server 2008 Learning Portal.