Jane Hamsher's whip count has been a great outlet for Public Option supporters to take action:

When I wrote that 64 Democrats in the House had pledged to vote against a health care bill with no public plan, I limited the list to those who have made that known, publicly and officially, by putting their names to that commitment (no anonymous whip counts, no "leaked" lists that the members won't acknowledge). It's been a long hard slog to get people to go on the record.

Rep. Anthony Weiner may have answered the question of just how much support the Public Option really has in the House during an interview on CNBC:

It sure would be great to get all 100 of those Congress critters on the record... It would make for a nice gift to send to Rahm Emanuel. :) 

[update] From Kos at dKos a few minutes ago:

Too bad Max Baucus isn't anything like his state's Democratic governor.

As Gov. Brian Schweitzer warmed up the crowd Friday for President Barack Obama, he paid a lengthy compliment to a health care system that leading Democrats, including the president, have declared "off the table" as a reform here: the Canadian single-payer system.

"Did you know that, just 300 miles north of here, did you know they offered universal health care 62 years ago?" he said, referring to Canada's system of providing government-funded health insurance for all citizens.

Schweitzer, a Democrat, said he sometimes mentions the Canadian system when he hears people say that universal health coverage is a radical, new idea being rushed through the political process.

Quoting a Canadian journalist, Schweitzer said it was said that "there's more likelihood of a person in Canada being struck by lightning than there is a likelihood of a Canadian going to the United States for their health care."

Most of the crowd of 1,300 in the Gallatin Field Airport hangar roared its approval.

Someone forgot to tell Schweitzer that his state is "too moderate" to go for something as crazy as the public option, much less single payer.