Today, January 18th, 2012 has been an unusual day on the Internet. Wikipedia went dark, providing no access to their content, simply a quick blurb about SOPA and a means of contacting your Congressman to offer your own protest.
The best info on the harm that SOPA-PIPA will potentially do is described by Clay Shirky in the video below. This was produced a couple of days ago and was put up on TED Talks website today as an emergency posting. Please watch the video and understand what this proposed bill is all about. Then call your Congressman.
Google has a petition at the following link and an easy means of sharing socially your protest - https://www.google.com/landing/takeaction/