CAD Services 
Their cost effective 2D and 3D CAD services include Architectural, Mechanical and other engineering drawings conversion from Paper or microfilmed formats to to CAD. |
Autodesk, Inc.
The creators of AutoCAD. Includes the searchable support database, a download area and discussion groups. |
CAD Forum
Database of tips and tricks for AutoCAD, AutoCAD LT, 3D Studio, Inventor and other products by Autodesk and HP. |
Cadopolis.com
Commercial portal for products and services related to AutoCAD, with add-ons, forums and links. |
CADSM
3D CAD with Motion Simulation. |
The CAD Compass
Offers industry news, and moderated discussion forums about computer aided design standards for the building industry, after free registration. |
The CAD Depot
A repository of freeware and shareware tools for use with AutoCAD and other CAD systems. |
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