CoCreate
CoCreae America's User Group, CAD.DE

Inventor
TopTen Inventor sites, add-ons, parts

IronCAD
IronCAD corporate site

KeyCreator
TopTen sites, CADL sites, dealers, third-party tools

Pro/ENGINEER
TopTen sites, blogs, consultants and services, forums, jobs, link sites, publications, third- party tools, training and tutorials, user groups

Rhino
TopTen sites, blogs, communities, 3rd party tools

Solid Edge
TopTen sites, add-ons, consultants

SOLIDWORKS
TopTen sites, consultants, blogs, third-party tools, user groups

NX
TopTen sites, services and consultants, third-party tools, users groups