Technical symbols in many categories for AutoCAD and Adobe Illustrator, as well as diagramming and title block management tools.

AutoCAD symbol libraries for the food service, restaurant and commercial kitchen industries, for ordering on CD-ROM.

A collection of CAD DWG blocks, including people, trees, cars, trucks, boats, construction details, and hatch textures, as uploaded by contributors.

CAD and 3D blocks in various categories , paid site

Features a downloadable CAD library of files for architects and design professionals.

A variety of hatch patterns for AutoCAD, available to download. Includes wood and stone tilings.

Block libraries of pipe fittings and 2D steel shapes for online ordering on CR-ROM.

An online library of AutoCAD, Viz, and 3DStudie blocks of varions manufacturers, with drag and drop feature into i-drop enabled programs [requires IE].

Commercial site, sells architectural block libraries for CAD designers.

Online libraries of AutoCAD DWG blocks, symbols, and templates for free download, including free AutoCAD drawings of peoples, cars, trees, chairs and vehicles.