Encyclopedias
| Columbia Encyclopedia www.bartelby.com |
| The Canadian Encyclopedia http://www.thecanadianencyclopedia.com |
| Wikipedia http://www.wikipedia.org/ |
| Infoplease http://www.infoplease.com/ |
| Answers.com http://www.answers.com/ |
| Refdesk http://www.refdesk.com/index.html |
| Credoreference http://www.credoreference.com/home.do |
| Fact Monster – Online Almanac, Dictionary and Encyclopedia http://www.factmonster.com/ |
| Webopedia http://www.webopedia.com/welcomead/ |
| Nuttall Encyclopædia of General Knowledge http://words.fromoldbooks.org/Wood-NuttallEncyclopaedia/ |