Free online classified ads and job posting at Astanda.com
http://www.cadregister.com/
A source for design professionals, engineers, and architects to download component drawings from leading manufacturers, in a variety of industry-standard formats.
http://www.cadtutor.net/
Free online tutorials for AutoCAD, and a forum for questions, answers, and discussion.
http://www.coe.org/
COE is dedicated to the exchange of information about CATIA and other Dassault Systèmes software products.
http://www.construsoft.com
Xsteel and PowerFrame software for steel structure modelling and analysis, and PowerPlate FEM for analysis of plate and grid structures.
http://cumincad.scix.net/
A cumulative index of publications about computer aided architectural design. It includes bibliographic information from journals and conferences such as ACADIA, CAADRIA, eCAADe, SiGraDi, CAAD futures and others.
http://www.delcam.com/
Delcam provides cad/cam solutions for 3D machining, toolmaking, 3D designing, modeling, mold making, inspection, reverse engineering.
http://www.delmia.com/
A subsidiary of the Dassault Systemes Group providing software to create, monitor and control manufacturing systems [requires JavaScript].
http://www.edsa.com
Electrical power systems design software.
http://www.edac.org/
The trade association for electronic design companies. Has links to all member companys sites.
http://www.esi-group.com/
Virtual prototyping software to determine product behaviour in crashes and other situations, as well as manufacturing simulation and optimization tools.
http://www.fsa.org/
Fabless Semiconductor Association (FSA)The Fabless Semiconductor Association supports the ongoing relationship between companies and suppliers, disseminates data, and encourages the creation, adoption, and implementation of standards and policies for the fabless model.
http://www.fbe.unsw.edu.au/learning/autocad/
A set of tutorials created by staff of the Faculty of the Built Environment, the University of New South Wales.
http://formz.com
Software for complex 3D modelling and visualisation. Designed and conceived by an architect
http://www.geda.seul.org/
GPL Electronic Design Automation (gEDA)An open-source effort to develop a suite of design tools. Currently offers schematic capture and simulation tools.
http://www.graphisoft.com/
The developers of ArchiCAD, a 3D architectural design software with 2D drawing and layout functions for architects, interior designers and structural engineers.