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Autodesk User Group International (AUGI) discussion forums.

CADTutor provides free video tutorials, articles, downloads and a busy community forum for users of AutoCAD and associated software.

A friendly AutoCAD

IT Best Practices, How-tos, Product Reviews, discussions, articles for IT Professionals in small and medium businesses

Having problems opening a file? We will help you find products that can open, view or play your files.

Learn how to do just about everything at eHow. Expert Village is now a part of eHow, adding expert How To videos to eHow, the world

Thousands of file extensions with detailed information about each file type, including a list of programs that open the files.

Engineering drawing document management software and related software for viewing, converting and managing engineering drawings in CAD vector and raster formats.

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LinuxQuestions.org offers a free Linux forum where Linux newbies can ask questions and Linux experts can offer advice. Topics include security, installation, networking and much more.