1. Wikipedia
The free encyclopedia that anyone can edit. Is the best and largest free encyclopedia, written collaboratively by its readers.
2. Yahoo! Answers
A new way to find and share information. You can ask questions on any topic, get answers from real people, and share your insights and experience.
3. About
Is a valuable resource for content that helps people to solve the large and small needs of everyday life.
4. Answers
Wiki Q&A combined with free online dictionary, thesaurus, and encyclopedias. Ask questions, get answers. Best Reference Websites
5. eHow
Learn how to do just about everything at eHow. Find expert advice along with How To videos and articles, including instructions on how to make, cook, grow, or do almost anything.
6. Reference
A free online encyclopedia and information reference. Research articles from Columbia Encyclopedia and Encyclopedia Britannica.
7. Wikia
Wikia is a community site that anyone can contribute to. Discover, share and add your knowledge!
8. Google Books
Search and preview millions of books from libraries and publishers worldwide using Google Book Search. Discover a new favorite or unearth an old classic.
9. HubPages
Online space to share your advice, reviews, useful tips, opinions and insights with hundreds of other authors. HubPages is completely free. Best Reference Websites
10. wikiHow
Wiki based collaboration to build the world’s largest, highest quality how to manual. Our multilingual how to manual has free step-by-step instructions on how to do all types of things.
11. HowStuffWorks
Explains thousands of topics, from engines to lock-picking to ESP, with video and illustrations so you can learn how everything works.
12. Internet Archive
A non-profit digital library offering free universal access to books, movies & music, as well as 150 billion archived web pages.
13. Allexperts
More than 1 million questions answered! Allexperts.com is the oldest & largest free Q&A service on the Internet.
14. Britannica
Explore the updated online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of articles, biographies, videos, images, and web sites.
15. The Open Directory Project
The largest, most comprehensive human-edited directory of the Web. It is constructed and maintained by a vast, global community of volunteer editors. Best Reference Websites
16. Encyclopedia
Online dictionary and encyclopedia with pictures, facts, and videos. Get information and homework help with millions of articles in our FREE, online library.
17. Mahalo
The knowledge sharing service; helping people quickly find the best information on topics, how to’s and coupons.
18. Refdesk
A free and family friendly web site that indexes and reviews quality, credible, and current web-based reference resources.
19. ipl2
Information You Can Trust features a searchable, subject-categorized directory of authoritative websites; links to online texts, newspapers, and magazines. Best Reference Websites
20. iTools
The best tools from across the web – Use one and switch to another tool with a click. Tools to look up, to translate, to convert, to find anything.
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