Architectural & Engineering Computer Aided Design: CAD and Architecture Sites

Official resources site from Autodesk.

Free tutorials and advice.

Create and share files and participate in a community of like-minded engineers.

The world's leading 3D printing service and marketplace.

This site aims to "provide technical knowledge and solutions to the MCAD community...enable the engineering community to retrieve the latest industry information quickly and easily."

The library contains functions commonly used to make parametric models.

Free cropped photos for architectural renderings.

99% Invisible is about all the thought that goes into the things we don’t think about — the unnoticed architecture and design that shape our world. With over 250 million downloads, 99% Invisible is one of the most popular podcasts on iTunes and is available on RadioPublic, via RSS and through other apps.

Free library of quality resources for architectural visualization, including brick, concrete, metal, timber, and stone.

The largest database for architecture and sourcing building products, as well as the home of the A+Awards.

Definitive online source for architecture community.

PDF notes of presentations in studio. Projects and architects you should know something about.

Witty tumblr that examines the blight of "McMansions" and offers examples of good and bad residential design.

Portrays "unbuilt architecture" for inspiration.

Online journal with excellent writing on architecture, landscape, and urbanism.

Redshift by Autodesk explores the future of making through compelling content about technology, innovation, and trends in construction and manufacturing.

The oldest architectural institution in the world, the Royal Institute of British Architects (RIBA) awards excellent student work and keeps images of the winners' work here.

Alex Hogrefe has created a comprehensive list of tutorials for creating compelling images, split conveniently into four sub-categories. Most of the tutorials focus on techniques that can be simply achieved using just SketchUp and Photoshop.