"PolitiFact checks claims by elected officials, candidates, leaders of political parties and political activists. We examine officials at all levels of government, from county commissioners to U.S. senators, from city council members to the president."
"Accuracy In Media is a non-profit, grassroots citizens watchdog of the news media that critiques botched and bungled news stories and sets the record straight on important issues that have received slanted coverage." It has a strongly right-wing orientation."
"As a progressive group, FAIR believes that structural reform is ultimately needed to break up the dominant media conglomerates, establish independent public broadcasting and promote strong non-profit sources of information."
"Acting as mainstream media watchdogs while pointing engaged Americans toward valuable alternative fare, these groups have raised awareness that any democratic reform in the United States must include media reform – Robert McChesney/John Nichols – The Nation"