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AR-CAD offers free and inexpensive 3D CAD Software with Motion Simulation Capabilities, namely freeCAD, StCAD. IN-Motion is a motion and dynamic simulation developed for Autodesk Inventor.

Autodesk is a world leader in 3D design software for manufacturing, building, construction, engineering, and entertainment. Since introducing AutoCAD in 1982, Autodesk has developed a broad portfolio of 3D CAD software programs to help users visualiz...

Freebyte, Your guide to the Web. Free software, clipart, images, music, games, jokes, anti-virus, dictionaries, pims, operating systems, programming tools, news, weather, screensavers, ebooks, etc.

Dreamcss.com is a web 2.0 tools and application review guide and online tutor for tech bloggers, designers and developers

GrabCAD - a free CAD model library with 2D / 3D CAD files available for software like SolidWorks, AutoCAD, Autodesk Inventor, Solid Edge, SketchUp etc.

YouTube is a place to discover, watch, upload and share videos.

SourceForge.net. Fast, secure and free downloads from the largest Open Source applications and software directory

Electronic design software solutions include OrCAD and Cadence Allegro PCB design suites, Virtuoso custom design platform, Incisive functional verification platform; training;

We’ve got AutoCAD Software and Add-ons and feature many software downloads including the latest AutoCAD 2010 add-ons and CAD Software releases.

Instructables is the Biggest How To and DIY community where people make and share inspiring, entertaining, and useful projects, recipes, and hacks.