HEATKEYS

The SAI Organization is an International cooperation for incorporating scientific and engineering research with a focus on Information Technology.

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

CAD Fórum - diskuzní fórum pro AutoCAD, LT, Inventor, Revit a další produkty firmy Autodesk, tisíce tipů a triků - poskytuje firma CAD Studio

Comprehensive information on rapid prototyping, rapid tooling, sterolithography and solid freeform fabrication technology products and services. Complete rapid prototyping service bureau listings.

Directory of expert witnesses, organized by specialty and by geographical location. Expert profiles, hundreds of expert articles by listed and verified experts.

Open Source, Linux News & Software

CAD Architect is a CAD resource library of over 6500 AutoCAD drawings for Architects & CAD Draughtsman

The experts on equipment manufacturers of medical devices and in vitro diagnostic products. MD+DI  helps industry professionals develop, design, and manufacture medical products that comply with complex and demanding regulations and market requireme...

Scientific Literature Digital Library incorporating autonomous citation indexing, awareness and tracking, citation context, related document retrieval, similar document identification, citation graph analysis, and query-sensitive document summaries. ...

IEEE Xplore. Delivering full text access to the world

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