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The Adobe Acrobat User Community is a global resource for users of Acrobat and PDF, with free eseminars, tips, tutorials, videos and discussion forums.

Computer Help from your Friendly How-To Geek

Home page of the United States Patent and Trademark Office

Printing Industry News and Discussion Forums

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The Apple support homepage is the main portal to help you answer all of your questions about your new Apple hardware and software products, featuring user forums, troubleshooting pages, and tutorials.

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Teaching courses and independent study available for teachers seeking professional development and accreditation.