The World Wide (CAD) Web

I'm reluctant to list any specific sites; I just went looking for an old favorite, and it's not there any more. Your search engine will be your best friend here. Apart from Autodesk's own Web presence, there are thousands upon thousands of other sites scattered around the world. Search on AutoCAD tutorials for online exercises, or try AutoCAD blogs for some independent views and opinions as well as tips and tricks for using AutoCAD.