Ceco.NET AutoCAD Blocks Libraries
- Online libraries of AutoCAD DWG blocks, symbols, and templates for free download, including free AutoCAD drawings of peoples, cars, trees, chairs and vehicles.
- http://www.ceco.net

YourCadblock.com
- They sell a collection of AutoCAD blocks, construction details, hatch textures, 3d models and other Services.
- http://www.yourcadblocks.com/index1.html

ArchBlocks.com
- Commercial site, sells high quality architectural block libraries for CAD designers.
- http://www.ArchBlocks.com

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

Code Zebra, Inc.
- Technical symbols in many categories for AutoCAD and Adobe Illustrator, as well as diagramming and title block management tools.
- http://www.codezebra.com/

Cadro pty ltd
- Offers the HatchKit software to createm edit, and manage hatch pattern definition files for AutoCAD and other CAD systems.
- http://www.cadro.com.au/hatchkit/

Dimension CAD
- AutoCAD and 3D studio blocks in various categories for free download.
- http://www.dimensioncad.com/

AutoCADHatchPatterns.com
- Hatch pattern libraries, hatch generators, capture AutoCAD hatch patterns, and hatch pattern manager for AutoCAD and AutoCAD LT.
- http://www.autocadhatchpatterns.com/

CAD-O Designer Databases, Ltd.
- Producers of CD ROMs for construction manufacturers' products. Also offer architectural AutoCAD symbol libraries.
- http://www.cad-o.co.uk/

ISOBlocks
- A library of isometric drawings for use with AutoCAD and other CAD drafting software. Subject areas include piping, power transmission, electric motors, plumbing, tubing, and HVAC.
- http://www.isoblocks.com/

The CAD Block Exchange Network
- A collection of AutoCAD DWG blocks, including people, trees, cars, trucks, boats, construction details, and hatch textures, as uploaded by contributors.
- http://cben.net/

AHatch Pro
- A standalone tool for the design of AutoCAD hatch patterns.
- http://www.fell-kernbach.de/products/ahatch/index-en.html

Compugraphx
- A library of hatch patterns for AutoCAD, with interactive selection and other utilities.
- http://www.compugraphx.com/

PIRS On-Line
- Selection of downloadable AutoCAD drawing blocks, fonts, hatch pattern, and AutoLISP routines, for download based on the shareware concept.
- http://www.insa.com/files.shtml

EZ-Plant
- A software landscape library for AutoCAD for landscape architects and designers.
- http://www.ez-plant.com/

Hatch Patterns
- A variety of hatch patterns for AutoCAD, available to download. Includes wood and stone tilings.
- http://www.hatchpatterns.com/

CadToolsOnline.com
- Block libraries of pipe fittings and 2D steel shapes for online ordering on CR-ROM.
- http://www.cadtoolsonline.com/

KCL Cadalog
- AutoCAD symbol libraries for the food service, restaurant and commercial kitchen industries, for ordering on CD-ROM.
- http://www.kclcad.com/

Hpat
- A library containing many hatch patterns for AutoCAD, including stone, wood, roof patterns.
- http://www.arbeit.ro/hpat/index.htm