Wikipedia isn't available on the Internet today. Neither are several other sites. Google's logo is covered with a black smudge and Craig's List is making users read a message before their searches get underway. It's all about proposed federal laws designed to stop Internet pirates from stealing movies and music and selling them cheaply online. Andrew Lih, Professor of Journalism at USC, is author of The Wikipedia Revolution: How a Bunch of Nobodies Created the World's Greatest Encyclopedia.