http://www.businessweek.com/news/2010-04-07/google-sued-over-claims-buzz-service-violated-privacy-rights.html

"Google Inc., owner of the most-used Internet search engine, was sued over claims its Buzz social- networking service violated the privacy rights of users of the company’s Gmail service."

» [...] The case, which seeks class action, or group, status was filed by Barry Feldman of New York, who claims Google automatically activated the Buzz program from his e-mail account [...] The case is Feldman v. Google, 10-01433, U.S. District Court, Northern District of California (San Jose). «

So, basically, it's one individual acting on usurpatory behalf of a larger, amorphous(?) group of similarly self-aggrieved users, who seeks redress from Google for alleged breach of trust he and his unmandated cohort claim to have been wronged by? Good luck, Barry, hope you have Deep Pockets™.