Ben's Guide provides explanations on a variety of civics concepts. http://bensguide.gpo.gov/
Part of the National Archives, here you will find many of the most important documents of our country's history. http://www.archives.gov/exhibits/charters/charters.html
This is a site where you can go to find the contact information for governors around the United States. http://www.usa.gov/Contact/Governors.shtml
You will find copies of the Federalist Papers here. http://www.foundingfathers.info/federalistpapers/
This is the home page to the National Archives website. http://www.archives.gov/
Here you will find games to play to assist you in understanding a variety of civics concepts. http://games.sunnylandsclassroom.org/Preview/
This site provides information about the U.S. Senators. http://www.senate.gov
This site provides information about the U.S. House of Representatives. https://writerep.house.gov/writerep/welcome.shtml