Wikipedia

Online encyclopedia covering every topic you need. Can be edited by anyone at any time. In almost every language.

http://www.wikipedia.org/

Encyclopedia Britannica

Encyclopedia Britannica is the online version of one of the world's most famous reference tools. While parts of the website requite a subscription, there is still a great deal of information to be found here. The website has a quote of the day, featured article (which can be sent to readers daily by email) and fun quizzes to expand your mind.

http://www.britannica.com/

Symbols.com

An online encyclopedia that explains over 2,000 Western signs and symbols. If you are looking for a particular symbol, you can use the search function or enter the graphic characteristics of sign. Much of the site's content can also be purchased as a book.

http://www.symbols.com/

The Canadian Encyclopedia

A free encyclopedia that provides information on many aspects of Canadian history and society. One of the site's special features is the encyclopedia of music in Canada where you can learn about Canadian musicians and composers.

http://www.thecanadianencyclopedia.com/