U.S. Capitol Switchboard:
1 (202) 224-3121 (call TODAY and ask for your senators' and/or representative's office to voice your opinion on the Health care bill)
And Rush had another great idea:
Flood the capitol in paper too. Send letters that read "VOTE NO ON HEALTH CARE BILL" to your Reps TODAY. Send them overnight by FedEx, UPS and USPS. Like Rush said, it'll cost money, but you'll be stimulating the economy while your flooding your reps and Senator's offices and crowding the streets with trucks...on a Saturday.
If you don't have the time and/or money...and email is also good.
Find your Representative's here.
Find your Senators here.
And here's the link to a free fax service.
Also, Rep. Steve King (R-IA) is urging opponents of the bill to attend a March 20th Capitol Hill rally to protest the health care reform bill:
"We can beat them if we fill this capitol city up full of patriotic Americans. If tens of thousands pour into this city again, like they have done numerous times before -- pack this Capitol, jam this Capitol, surround the place, don't let anybody in or anybody out -- they will have to capitulate."