Learning AutoCAD

When u google to learn autocad u'll find numerous  web sites catering u with a large number of tutorials. But not all of them provide quality information. So i decided to find out the best ones .. And here's the top 3 websites which i found quite assistive to learn AutoCad :

1)  mycadsite ... http://www.mycadsite.com
2)  cadforum  ... http://www.cadforum.cz
3) 2learncad  ... http://www.2learncad.com

Also here is a download link to book which is also quite helpful for learning AutoCAD.

http://www.kat.ph/learning-autocad-2010-ebook-pdf-2-volumes-rdx-t3129957.html