Architosh: Macintosh online news and information community for professionals in Macintosh CAD and 3D markets.
CAD Forums.net: Discussion forums for users of AutoCAD, SolidWorks, Pro/Engineer, Cadence and MicroStation.
CAD User's Ring: A web ring listing users and developers of CAD applications.
CADalog: A directory of CAD resource files, an online parts library, and listings of CAD employment opportunities, with a searchable database.
cadbot: A specialized search engine, which lists DWG and DWF files in idrop format, as well as more common search results
CADdigest: Collects links to CAD/CAM/CAE related articles published online.
Cadmonkey.com: A CAD resource site with news articles, tips and tricks, downloadable files, discussion forums, and classifieds.
click4links.com: A directory covering CAD topics for several industries.
eCAAD.com: Contains links to CAD books, tutorials, certification, freeware, software, shareware, downloads, research, jobs, virtual reality, and communities.
Forum For CAD: A forum site dedicated to Computer Aided Design.
LUnIx CAD/3D Shrine: A directory of CAD related links for Linux users.
mCADForums.com: Online discussion forum for designers, consultants, engineers, and CAD managers. Autodesk Inventor, Solidworks, ProE, Alibre and other software discussed here.
The CADwire: Delivers CAD industry news, product reviews, articles, events and resources.
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.