50 States.com
http://www.50states.com/
Information about the 50 U.S. states.

CIA World Fact Book
https://www.cia.gov/library/publications/the-world-factbook/index.html
Up to date country information provided free by the CIA.

Encyclopedia.com
http://www.encyclopedia.com/
Encyclopedia.com, the Internet's premiere free encyclopedia, provides users with more than 57,000 frequently updated articles from the Columbia Encyclopedia, Sixth Edition. Each article is enhanced with links to newspaper and magazine articles as well as pictures and maps - all provided by HighBeam Research.

High School Ace
http://quizhub.com/quiz/quizhub.cfm
Free online study center for many school subjects.

Math.com
http://www.math.com/
link to the World of Math online

Pink Monkey.com
http://pinkmonkey.com/index2.asp
Pink Monkey is a "G" rated study resource for junior high, high school, college students, teachers and home schoolers. Find free online Literature Summaries, with over 450 Study Guides / Book Notes / Chapter Summaries online.

Merriam-Webster online
http://www.merriam-webster.com/home.htm
Link to the Merriam-Webster free online dictionary and thesaurus.

National Geographic Online Maps
http://education.nationalgeographic.com/education/mapping/interactive-map/?ar_a=1
Online maps and information from the National Geographic Society.

Presidential Timeline
http://www.presidentialtimeline.org/
Information about the Presidents of the United States and their administrations.