Libraries

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

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

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/

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/

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/

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/

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

Ceco.NET
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

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/

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

Details for a Dollar
Library of residential construction CAD details. Each is downloadable for one dollar. Also option to purchase the entire library.
http://www.detailsforadollar.com/

Dimension CAD
CAD and 3D blocks in various categories , paid site
http://www.dimensioncad.com/

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

FireHouse Designs
AutoCAD Blocks of US and European vehicles, trees, aircraft, and other objects, in plan and elevation.
http://home.att.net/~george-nichols/

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

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

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/

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

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