This is one major online petition, currently seeking one million signers, to protest the newest anti piracy bill, CISPA.
This is an organization called the electronic frontier foundation, and they have created a form letter to email to all of your national represenatives. All you have to do is enter your zip code.
This is the contact information of the primary sponsor of CISPA, Mike Rogers. His personal e-mail address, office, and office phone number are included here.
This is a way to petition the White House urging them to veto CISPA if it is passed
This is a full list of companies that want to sell your personal internet activities to the government