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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.

The Microsoft Support home page is your support portal for Microsoft products. Download updates and find top issues, error messages, and troubleshooting tips for Windows XP, Windows Vista, Windows 7, Office 2010, the 2007 Microsoft Office system, and...

Make everything easier in your life with step-by-step instruction, how-to information, and video demonstrations awaiting your discovery at dummies.com ? the online resource for fun fact-finding.

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

Mac Forums is a discussion forum for Mac, Apple, iPhone and iPod related topics. Find great Windows to Apple switchover questions and answers as well.

Massachusetts Unix and Linux consultant Tony Lawrence offers troubleshooting services and advice for bloggers and the self employed.

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Tutorials for Java, Linux, Mac OS X, iPhone, iPad, Android, Drupal, MySQL, UML, software quality, testing, and more.

The American Radio Relay League (ARRL) is the national association for amateur radio, connecting to hams around the U.S. with news, information and resources.