Revolution

Banned in the U.S.

The Telecommunications Act of 1996 banned "indecency" on the Internet and rendered many sites technically illegal until the provisions were ruled unconstitutional in 1997.

Here is a list of things on the Internet that the U.S. government made it illegal for you to see:

All the above would be legal for you to see if they were put on paper. The U.S. Congress passed a law (later overturned) making them illegal in electronic form.