Here are a few site I found to help you find answers to your questions.

Yahoo Answers Community driven, Asking is a snap. Ask a question on any topic that matters to you, and other people will give you answers. A good user manual for the English language.

HowStuffWorks A wholly owned subsidiary of Discovery Communications, is the award-winning source of credible, unbiased, and easy-to-understand explanations of how the world actually works.

Fixya Provides Free tech support and technical help for gadgets, electronic equipment and consumer products.

Instructables Is a web-based documentation platform where passionate people share what they do and how they do it, and learn from and collaborate with others. is an award-winning provider of educational materials, including Hands-On Training™ instructional books, the Online Training Library®, CD- and DVD-based video training, and events for creative designers, instructors, students, and hobbyists.