Senator Lloyd Bentsen, himself a long-time Washington and Wall Street insider, is credited with coining the term "astroturf lobbying" to describe the synthetic grassroots movements that now can be manufactured for a fee by companies like Beckel Cowan, Bivings Group, Bonner & Associates, Burson-Marsteller, Davies Communications, DCI Group, Direct Impact, Hill & Knowlton, Issue Dynamics Inc., National Grassroots & Communications, or Optima Direct.
Campaigns & Elections magazine defines astroturf as a "grassroots program that involves the instant manufacturing of public support for a point of view in which either uninformed activists are recruited or means of deception are used to recruit them." Journalist William Greider has coined his own term to describe corporate grassroots organizing. He calls it "democracy for hire."
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http://www.disinfopedia.org/wiki.phtml?title=Astroturf