Visa / Citizenship

http://travel.state.gov/visa/visa_1750.html
http://www.uscis.gov/portal/site/uscis

PhD / Largest Ph.D. Schools / By States in U.S.

http://www.uniguru.com/studyabroad/postgraduate/us-usa-university-courses/us-usa-PhD-courses/i/fn/all211/1/programs.html
http://education-portal.com/phd_usa.html
http://www.usastudyguide.com/mastersdegreeprograms_phddegreeprograms.htm

USA Education

Tourist

http://www.usatourist.com/

News

http://www.usatoday.com/

Maps

http://www.mapsofworld.com/usa/index.html

Information by Topic

http://www.usa.gov/

USA / Culture / 50 States

http://en.wikipedia.org/wiki/United_States
http://en.wikipedia.org/wiki/Culture_of_the_United_States
http://www.50states.com/

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