The AutoCAD Resource Center has been updated for the newly shipping AutoCAD 2010. There is a great deal of information presented on this website to understand what has changed in AutoCAD 2010 and how to best use the new features.
http://resources.autodesk.com/autocad
There is even the new AutoCAD 2010 Tips and Tricks screencast by our very own CAD diva Lynn Allen 
http://adskmedia.com/autocad_2010/
