CAD LEVEL 1- Getting Started with AutoCAD http://www.we-r-here.com/cad/tutorials/level_1/1-1.htm
CAD LEVEL 2 - Intermediate AutoCAD http://www.we-r-here.com/cad/tutorials/level_2/2-1.htm
CAD LEVEL 3 - Introduction to 3-D http://www.we-r-here.com/cad/tutorials/level_3/3-1.htm
CAD LEVEL 4 - Advanced Topics http://www.we-r-here.com/cad/tutorials/level_4/4-1.htm