It will tell you about copyright laws, plagiarism, public domain and will help answer your copyright questions. Check out Major Legislation topics and Congressional Internet Services. Find out who your federal representatives are and how they've been voting. This site has many useful links. Contains voting records and information about Congress.
Interesting site includes information about special interest groups and campaign contributions.
This is billed as The Great American Web Site. As you make difficult cuts 'in the budget, you begin to realize why the budget isn't balanced. The National Archive and Records Administration, home to many important historical documents. It's a wonderful site for historical information. If you search leads you to Supreme Court cases, this is the place to go.