Almanacs

Almanac http://www.worldalmanacforkids.com/
 
Farmers Almanac http://www.almanac.com/

Fast Facts http://www.freepint.com/gary/handbook.htm

Atlas http://www.nationalgeographic.com/xpeditions/atlas/index.html

Biographies

Biographies http://www.infoplease.com/people.html

PBS Biographies http://www.pbs.org/history/history_biographies.html

Who2? http://www.who2.com/

Dictionaries

American Heritage Spanish Dictionary http://education.yahoo.com/reference/dict_en_es/

Little Explorers Picture Dictionary http://www.enchantedlearning.com/dictionary/

YourDictionary.com http://www.yourdictionary.com/

Encyclopedias

Encyclopedia http://www.encyclopedia.com/

Encyclopedia Smithsonian http://www.si.edu/Encyclopedia_SI/

Ask for Kids http://www.askforkids.com/

Homework Spot http://homeworkspot.com/elementary/

Myth Web http://www.mythweb.com/