PowerCAD - CAD program in 2D/3D for architectural and mechanical applications, with AutoCAD compatibility features.Touch-3D - 3D modeling, unfolding and unwrapping program for Macintosh and Windows, and free-form add-on MCnurbs Creator for VectorWorks and MiniCad.
Evolution Computing, Inc. - Developers of the FastCAD and EasyCAD computer aided drafting programs
Joel Orr's World of Technology - News and articles about CAD, plus books, humor, educational resources and relevant links.
DesignCAD - Multipurpose software for 2D drafting and 3D solid modeling.
solidThinking - Modelling software that supports NURBS, polygonal modeling, and subdivision surfaces, available for Windows and Macintosh.