United States Website Links
State Symbols:
http://www.statesymbolsusa.org/index.html
50 States.com
Enchanted Learning
http://www.enchantedlearning.com/usa/states
Information Please
http://www.infoplease.com/states.html
World Health Organization
http://www.who.int/countries/usa/en
CIA Manual
https://www.cia.gov/library/publications/the-world-factbook/index.html