Exactly who is "Health Care for America Now"? They are one of the "manufacturers" of the REAL astroturfing going on at some of these events

From their website:

What is Health Care for America Now (HCAN)?

Health Care for America Now (HCAN) is a national grassroots campaign of more than 1,000 organizations in 46 states representing 30 million people dedicated to winning quality, affordable health care we all can count on in 2009. Our organization and principles are supported by President Obama, Vice President Biden, and more than 190 Members of Congress.

We are building a national movement to win comprehensive health care reform by helping mobilize people in their communities to lobby their U.S. Senators and Representatives in Congress to stand up to the insurance companies and other special interest groups to achieve quality, affordable health care in 2009.

Who supports HCAN?

Health Care for America Now and its
principles for reform are supported by President Obama, Vice President Biden, and more than 190 Members of Congress. HCAN has more than 1,000 member organizations in 46 states. We are doctors, nurses, community organizations, labor unions, small business owners, faith-based groups, people of color, seniors, and children’s and women’s rights groups.

For the complete list of HCAN members,
view our membership list. (More than a few names will jump out at you)

Our Steering Committee includes: ACORN, AFL-CIO, AFSCME, AFT, Americans United for Change, Campaign for America’s Future, Center for American Progress Action Fund, Campaign for Community Change, Children’s Defense Fund Action Council, Communications Workers of America, International Union, United Automobile, Aerospace & Agricultural Implement Workers of America (UAW), MoveOn.org, NAACP, National Council of La Raza, National Education Association, National Women’s Law Center, SEIU, UFCW, USAction, Women's Voices, Women's Vote and Working America.