http://www3.autodesk.com/ Autodesk’s Homepage
http://www3.autodesk.com/adsk/index/0,,186737-123112,00.html Autodesk Events
http://www3.autodesk.com/adsk/index/0,,349536-123112,00.html Autodesk University
http://e-learning.autodesk.com/eLearnMain.asp General information about e-courses
http://e-learning.autodesk.com/default.asp To purchase an e-course
http://support01.autodesk.com/ Information about technical support
http://www.cadonline.com Home of CADALYST magazine
http://www.cadenceweb.com Home of CADENCE magazine
http://www.power.org The Silicon Valley AutoCAD Power Users
http://www.vaus.org The Vancouver AutoCAD Users Society (VAUS)
http://www.cadalog.com CADalog, the AutoCAD Shareware Clearinghouse
http://www.caddepot.com The CAD Depot a great collection of freeware and shareware, articles, news, and links.
http://www.cadinfo.net CADInfo.net has great software libraries, links, and articles on various CAD-related topics.
http://www.cadshack.com The CAD Shack offers blocks, files, a list of more than 500 AutoCAD books, tips and tricks, fonts, hatch patterns, a bulletin board — you name it.
http://home.pacifier.com/~nemi/ Better Than Nothing AutoLISP Leonid Nemirovsky's AutoLISP routines are useful and free downloads. I put several on the CD-ROM of this book. Leonid wrote two (It.lsp and Idt.lsp) at my request, for which I'm grateful.
http://www.manusoft.com ManuSoft A good collection of software for AutoCAD — some for free, others to buy
http://www.mossdesigns.com Moss Designs Free downloads, tips, and tutorials.
http://Web2.airmail.net/markpowl/acad.html Mark Powell’s AutoCAD & AutoLISP links a good list of AutoCAD and AutoLISP links.
http://xarch.tu-graz.ac.at/autocad/ Reini Urban’s AutoCAD page a list of AutoCAD and AutoLISP tips and tools, FAQs, documents, and so on.
http://www.simplecad.com SimpleCAD AutoLISP resources and block libraries. Also another list of CAD-related Internet links.
http://www.fbe.unsw.edu.au/Learning/AutoCAD/R2000/ University of New South Wales (UNSW) has placed some of its AutoCAD courses on its Web site, available for Release 2000 — and free.
http://www.vbdesign.net/cadpages VBDesign Randall Rath's site on using VBA in AutoCAD. Includes tutorials and downloads.
http://www.dotsoft.com Dotsoft Terry Dotson's site offers AutoCAD-related software for sale along with lots of freebies and tips.