CAD sites organized into top ten lists, covering all major CAD software packages, plus industries, CAD jobs, tutorials, and tips and tricks. http://www.tenlinks.com/
A directory of CAD resource files, an online parts library, and listings of CAD employment opportunities, with a searchable database. http://www.cadalog.com/
A CAD resource site for engineering professionals where visitors can add their opinions and ratings about the listed links, for other visitors to read. http://www.cad-portal.com/
Online discussion forum for designers, consultants, engineers, and CAD managers. Autodesk Inventor, Solidworks, ProE, Alibre and other software discussed here. http://www.mcadforums.com/