Encyclopedias

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  • 1902 Encyclopedia  - Articles and illustrations from the Encyclopaedia Britannica, 9th Edition (1875) and 10th Edition (1902). Searchable by keyword and browsable by subject index.
  • Again, But Slower  - Displays Wikipedia articles and their simpler counterparts side by side.
  • Encyclopedia Britannica  - Provider of learning knowledge products through its online resources and distributed books and products.
  • Encyclopedia Smithsonian  - Offers images, video and sound files from dozens of Smithsonian libraries, archives, and museums.
  • Information Please  - Knowledge resources featuring almanacs, atlases, encyclopedia, discitonary, thesaurus, and white pages.
  • Knol  - User-written knowledge-base with comments sections for all articles.
  • Mashpedia  - Offers a mashup of Wikipedia articles, Twitter tweets, and breaking news.
  • Navify  - Aims to enhance Wikipedia content by adding more images and videos to articles.
  • Qwiki  - Encyclopedic guide featuring articles on various topics with several accompanying photos and maps.
  • Rudiments of Wisdom  - Thousands of cartoons by Tim Hunkin, offering simple information in many different categories including biology, music, psychology, music, language, religion and engineering.
  • Scholarpedia  - Features a peer-reviewed open-access encyclopedia, containing knowledge that is curated by communities of experts.
  • Visipedia  - Visual encyclopedia project that is a collaboration between Caltech and UCSD.
  • Wikia  - Offers a large assortment of topical wikis, as well as the traditional ability to edit them.
  • Wikipedia  - Free open-source multilingual encyclopedia with volunteer editors.
  • World Book, Inc.  - Official site promoting its excellence in the production of award-winning encyclopedias, reference sources, and multimedia projects for the home and schools.
 
 
 
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