Voyage of Exploration: Discovering New Horizons  
   Leads visitors on a journey through the past centuries looking at the explorers, the dangers they faced, where they went, and their motivations for exploration. In English and Dutch.
   http://library.thinkquest.org/C001692/

Society for the History of Discoveries  
   Offers an annual prize for an essay on voyages, history of exploration, navigation, nautical travels, maritime history, and geographical discovery.
   http://www.sochistdisc.org/

Antarctic Philately  
   History, biographies, and memorabilia of explorers of the "great white continent".
   http://www.south-pole.com/

Meeting of Frontiers  
   "A bilingual, multimedia English-Russian digital library that tells the story of the American exploration and settlement of the West, the parallel exploration and settlement of Siberia and the Russian Far East, and the meeting of the Russian-American
   http://frontiers.loc.gov/

The Age of Discovery  
   Chapter-length article written in 1966 reviewing the literature on exploration. Includes references, by Wilcomb E. Washburn.
   http://marauder.millersv.edu/~columbus/data/art/WASHBR05.ART

Ships of Discovery  
   Underwater archaeology and shipwrecks. "Sheds light on the ships that have made our planet one world."
   http://www.shipsofdiscovery.org/

Ancient Egypt: Voyages of Exploration  
   A summary of early Egyptian voyages along the eastern African coast and the attempted circumnavigation of Africa.
   http://nefertiti.iwebland.com/timelines/topics/exploration.htm

1492: An Ongoing Voyage  
   A US Library of Congress exhibit which examines indigenous peoples in five parts of the Americas and their sustained contact with European explorers, conquerors and settlers from 1492 to 1600.
   http://www.ibiblio.org/expo/1492.exhibit/Intro.html

Maps of Exploration and Discovery  
   Searchable collection of historical manuscripts and maps, from the US Library of Congress.
   http://lcweb2.loc.gov/ammem/gmdhtml/dsxphome.html

Age of Exploration  
   Curriculum guide to maritime exploration throughout history, including a time line list of major events, 3200 B.C. - 1779 A.D..
   http://www.mariner.org//educationalad/ageofex/