Autodesk, Inc.
Download the free DWG TrueView AutoCAD design viewer to view, plot, and publish DWG and DWF files--now with TrueConvert functionality to convert any AutoCAD-based file for compatibility.
http://www.autodesk.com/dwg

Professional AutoCAD Users Group (PAUG)
PAUG, Professional AutoCAD Users Group, an AutoCAD user group providing user support for AutoCAD software for Denver and Front Range areas of Colorado and Wyoming.
http://forum.paug.org/

EllenFinkelstein.com
AutoCAD tips and tutorials, the features of the latest AutoCAD release, a free monthly AutoCAD Tips Newsletter, and the AutoCAD Tips Blog.
http://www.ellenfinkelstein.com/

DWG DXF Convert
An AutoCAD DWG/DXF bi-directional translator built using the powerful DWGDXFLib library. It converts an AutoCAD DWG file into an AutoCAD DXF file and vice-versa without the need of AutoCAD. DWG DXF Convert also supports batch conversions of multiple DWG or DXF files.
http://www.fpsols.com/dwg_dxf_convert.html

drcauto
drcauto - Add-on software for AutoCAD LT suite. drcauto specialise in add-on software for AutoCAD LT 2008, AutoCAD LT 2007, AutoCAD 2008, AutoCAD 2007, AutoCAD 2006, AutoCAD 2005, AutoCAD 2004, AutoCAD 2002, AutoCAD 2000i, AutoCAD 2000. Our top-selling software applications include; SuperTools, SlingShot Max, Smart Architect LT PRO, Smart Architect LT, Toolkit Max, Toolkit and LT3D PRO many titles are available for immediate FREE Try-out and all can be purchased securely online!
http://www.drcauto.com/

Auto-Code CAM Software
Primary index page for AUTOCODE.COM
http://www.autocode.com/

Ceco.NET AutoCAD Blocks Libraries
AutoCAD Block Libraries, AutoCAD Blocks, AutoCAD Symbols Blocks Drawings Images Models Details templates, Architectural Symbols, Computer aided design, for AutoCAD 2008 2007 2006 2005 2004 2002 2000i, AutoCAD library block drawing model symbol detail gallery CAD sketch, dwg dxf format, CD free download free samples, AutoCAD help, Architectural Add on, Architects, Engineers, Designers, Planning, Engineering, AutoCAD symbol, drawing and block libraries 2 dimension and 3 dimension 2D 3D
http://www.ceco.net

Microvellum
Autocad support for the woodworking industry.
http://www.microvellum.com/

CADDee.com
CADDee.com - The Computer Aided Drafting and Design Efficiency Experts
http://www.caddee.com/

ManuSoft
Shareware and freeware for AutoCAD. Also provides consulting, customization and support services.
http://www.manusoft.com/Index.stm