Online Reference Resources

Online Reference Resources

Dictionaries and Thesaurus


  • : A Collection of Online Encyclopedias, Providing Reference Entries From Over 100 Credible, Published Sources.
  • Encyclopedia of Earth : An Electronic Reference About the Earth, its Natural Environments, and Their Interaction With Society.
  • Encyclopedia of Life : An Online Reference Source and Database for All of the 1.8 Million Species that are Named and Known on this Planet.
  • MedlinePlus : Medical Dictionary and Encyclopedia.
  • Wikipedia : The Free Encyclopedia.

Grammer and Writing Guides

Online Reference Desks

Other Resources