HEATKEYS

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

Silverfish Longboarding is a longboard skateboarding magazine with Longboards, Reviews, forums, articles, photos, and tip tricks, the ultimate resource for Concrete Wave, Downhill Skateboarding, Slalom and Sliding

CADTutor provides free video tutorials, articles, downloads and a busy community forum for users of AutoCAD and associated software.

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

CAD Library: Free Download CAD Drawings and Libraries. AEC, Architectural, Civil, HVAC, Electrical, Plumbing, Detail Drawings and Symbol Blocks in Autocad .DWG .DXF - CAD Software

AST Bearings is a premier supplier of high-precision, miniature, and industrial ball bearings, roller bearings, bushings, and related bearing services.

CAD Blocks FREE! Download FREE CAD Blocks from a variety of categories and CAD disciplines. Browse before you download as all of our CAD Blocks have detailed thumnail views!

Landscape Structures Inc provides creative and inspiring children

Rensselaer Polytechnic Institute educates the leaders of tomorrow for technologically based careers. We celebrate discovery, and the responsible application of technology, to create knowledge and global prosperity.

The City of Racine - Wisconsin - USA

Free ramp plans. How to build skateboard ramps, rails, quarter pipes, half pipes, mini ramps, bank ramps, and grind boxes. Perfect transition profiles for ramps.