Microsoft Office Helpful
Hints and Instructional Tools
Office 2007/2010 Helpful Hints
Office Helpful Video Tutorials
Below are some self-paced resources for the novice or the experienced user needing to refreshen skills.
MS Office 2007 Self-Paced Training Courses by Microsoft.com
MS Office 2007 Quick Reference Guides (PDF) by Custom Guide.com
For those of you who have upgraded to Microsoft 2010, Microsoft has created self-paced course titled "Make the switch to Office 2010", to help ease your transition,http://office.microsoft.com/en-us/support/training-FX101782702.aspx .