Finally it is complete - the list of Representatives on Facebook! Total number of Representatives on Facebook who are not yet cosponsors of HR 3101: 219! That's at least half of the total number of Representatives in Congress! Check out the greatly expanded list. Use these pages to either post a message on the wall, or if it is a personal page, send a private email to your Representative.
Your message or email can be long and detailed, or it can be as short as "I am deaf. I want captions online. Please cosponsor HR 3101."
Update: The Caption Action 2 blogroll has a downloadable spreadsheet of Congress staff contacts. This spreadsheet has a Facebook column.