via vimeo.com
You probably know a lot of people who will be asking you why all their favorite sites are down. This video explains why. Send it to them.
Another way you could help educate people on why this is important is Tutorspree's Explain SOPA minisite. They'll connect you with people who don't understand it. Send them the video and answer their questions.
Remember: all that is necessary for evil to triumph is for good men to do nothing.
EDIT: Hellofax is also sending faxes to your representatives and senators for free on your behalf. Just enter your address and a message, and we'll clog their pipes so they know they can't ignore us.