NASA for middle-school students http://www.nasa.gov/audience/forstudents/5-8/features/index.html
National Geographic for Kids http://www.nationalgeographic.com/kids/
The World Fact Book https://www.cia.gov/redirects/factbookredirect.html
The United States Interactive Map http://www.enchantedlearning.com/usa/states/pennsylvania/
Underground Railroad Simulation Activity http://pathways.thinkport.org/following/
The National Underground Railroad People Link http://www.freedomcenter.org/learn/underground-railroad/people/listing.html
United States Fast Facts http://www.infoplease.com/states.html
8th Grade Textbook Link http://www.classzone.com/
The Holocaust http://www.glencoe.com/sites/pennsylvania/teacher/socialstudies/assets/holocaust/flash/index.html
Women in History http://www.history.com/minisites/womenhist/
The National Women's Hall of Fame http://www.greatwomen.org/women.php?action=viewAll
7th Grade Textbook Link http://www.glencoe.com