Best-Sellers:

CAD / CAE / EDA Information

CAD (Computer Aided Drawing), CAE (Computer Aided Engineering), and EDA (Electronic Design Automation) are important tools for electronics engineering and embedded systems development, helping us visualize, specify, and document our designs.

IntelliCAD
IntelliCAD is a powerful CAD software that is used by professionals in over 80 countries to create mission critical drawings in a cost effective manner. You don't have to learn a brand new interface if you are familiar with the Windows environment and other popular CAD systems such as AutoCAD, since IntelliCAD uses most of the same keystrokes and commands.
Cad-Portal.com
An Internet resource for engineering professionals. Features a CAD/CAM/CAE directory, job links, and InfoChannels focussing on products by vendor. Primarily concerned with mechanical CAD, but also some electronics CAD info.
EDA Tools Cafe
An EDA portal, with EDA news, IC Design news, discussion forums, EDA link directories, EDA software downloads, career information, EDA educational resources, and much more.
PCB Design Resource Guide
Bill Brooks' site provides links to all sorts of PCB-related information, including tool vendors, industry publications, PCB manufacturers, standards organizations, and a large array of useful calculators and design aids.
PlanetCAD
The first CAD portal offering industry resources, e-commerce and multiple application services to help manufacturing and design engineers streamline the digital manufacturing supply chain and more effectively manage difficult, time-consuming design engineering tasks.
Printed Circuit Design Magazine
Printed Circuit Design is the leading voice for PCB designers, with industry news, feature articles, and product reviews. The site also features a comprehensive collection of PCB-related resources, as well as a large listing of SMT footprint specifications.
The CAD Depot
A CAD and engineering portal featuring CAD-related shareware and freeware, CAD articles, CAD news, and reviews of CAD products. This site is mostly focussed on mechanical CAD. The CADwire is a very similar site.