American Association of Law Libraries; American Library Association; American Society of News Editors; Association of Alternative Newsmedia; Association of Research Libraries; Bill of Rights Defense Committee; Center for Science and Democracy at the Union of Concerned Scientists; Citizens for Responsibility and Ethics in Washington; Common Cause; Data Coalition; Defending Dissent Foundation; Demand Progress; Free Government Information; Government Accountability Project; OpenTheGovernment.org; Project On Government Oversight; R Street Institute; Society of American Archivists; Sunlight Foundation(3/8/2016)
American Civil Liberties Union; American Library Association; Association of Research Libraries; Bill of Rights Defense Committee; Campaign for Liberty; Center for Democracy & Technology; Center for Financial Privacy and Human Rights; Computer & Communications Industry Association; The Constitution Project; Constitutional Alliance; Consumer Action; Consumer Federation of America; Consumer Watchdog; Defending Dissent Foundation; Distributed Computing Industry Association; Electronic Frontier Foundation; Fight for the Future; FreedomWorks; Global Network Initiative; Human Rights Watch; Interactive Advertising Bureau; Internet Infrastructure Coalition; National Association of Criminal Defense Lawyers; NetChoice; New America's Open Technology Institute; Niskanen Center; Project Censored/Media Freedom Foundation; R Street Institute; Restore the Fourth; RootsAction.org; Software & Information Industry Association; TechFreedom; X-Lab(12/16/2015)