http://usgovinfo.about.com/od/uscongress/a/congresspay.htm
http://usgovinfo.about.com/od/governmentjobs/a/Annual-Salaries-Of-Top-Us-Government-Officials.htm
http://www.scholastic.com/teachers/article/seven-roles-one-president
http://www.globalpost.com/dispatch/news/regions/americas/united-states/120326/5-top-landmark-supreme-court-cases
http://www.enotes.com/law/discuss/what-five-kinds-cases-heard-by-federal-courts-96258
http://usgovinfo.about.com/od/governmentjobs/a/Annual-Salaries-Of-Top-Us-Government-Officials.htm
http://www.scholastic.com/teachers/article/seven-roles-one-president
http://www.globalpost.com/dispatch/news/regions/americas/united-states/120326/5-top-landmark-supreme-court-cases
http://www.enotes.com/law/discuss/what-five-kinds-cases-heard-by-federal-courts-96258