Ultimate CAD Directory

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/

CAD-Portal.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/

Cadmonkey.com

A CAD resource site with news articles, tips and tricks, downloadable files, discussion forums, and classifieds.
http://www.cadmonkey.com/

CADalog

A directory of CAD resource files, an online parts library, and listings of CAD employment opportunities, with a searchable database.
http://www.cadalog.com/

The CADwire

Delivers CAD industry news, product reviews, articles, events and resources.
http://www.cadwire.net/

Architosh

Macintosh online news and information community for professionals in Macintosh CAD and 3D markets.
http://www.architosh.com/index.phtml

CAD User's Ring

A web ring listing users and developers of CAD applications.
http://X.webring.com/hub?ring=caduser

click4links.com

A directory covering CAD topics for several industries.
http://www.click4links.com/

LUnIx CAD/3D Shrine

A directory of CAD related links for Linux users.
http://www.tech-edv.co.at/lunix/CAD.html

CADdigest

Collects links to CAD/CAM/CAE related articles published online.
http://www.caddigest.com/

eCAAD.com

Contains links to CAD books, tutorials, certification, freeware, software, shareware, downloads, research, jobs, virtual reality, and communities.
http://www.ecaad.com/

CAD CAM Forum

A discussion forum around CAD CAM CNC programming software, as well as news, articles, and resources.
http://www.cadcamforum.net/

mCADForums.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/