With very high quality research staff and lawyers on board, these Bill of Rights watchdog groups produce extensive reports on various aspects of America's expanding surveillance state. They frequently go to court to defend our Fourth Amendment rights against both overreaching police authorities and corporate intruders, and they rally citizens to defeat repressive legislation and executive actions at all levels of government. In addition, they offer how-to tips and self-defensive action kits to help individuals and local groups stand up to invasive governmental and corporate powers.
Bill of Rights Defense Committee: http://www.bordc.org
Electronic Frontier Foundation: http://www.eff.org
Electronic Privacy Information Center: http://www.epic.org