MSDN’s Channel 9 is offering no cost training from their learning center. Learn at your own pace with these on-demand videos. Here are a few links to some of their content:

Microsoft Office 2010 Workshop
Windows Server 2008 R2 Developer Training
SharePoint 2010 Developer
Visual Studio 2010 and .Net Framework 4 Training Course
Windows 7 Developer Training

Also, here are a few links to some no-cost Exchange Server 2010 E-Learning courses:
Clinic 6899: Exploring Features of Exchange Server 2010 (2 hours)
Clinic 6900: Introduction to Exchange Server 2010 (one hour)
Clinic 6901: Exchange Server 2010 in an Enterprise (one hour)