Truth-o-meter

Focuses on accuracy of U.S. political players within all media formats

Politics, Science, & Health (From the Annenberg Foundation)

Focuses on false and misleading scientific claims made to influence public policy

Independently fact checks statements by influencers and news outlets.

Focuses on political rumors and hoaxes

Rumors, myths, urban legends

Global network of scientists sorting fact from fiction in climate change media coverage.

Fact checks from AP journalists around the globe.

Uses Pinocchio ratings

Media Bias/Fact Check (MBFC), founded in 2015, is an independent online media outlet.

Fact-checking organization based out of France

Nonpartisan, independent and nonprofit, OpenSecrets is the nation's premier research group tracking money in U.S. politics and its effect on elections and public policy, including from foreign interests.

Provides information on the status of legislation — including the legislative and voting history of each member of Congress.

LegiStorm Pro is a fully integrated, Web-based platform for government affairs professionals who need to accurately identify congressional staff, monitor activity on Capitol Hill, and engage with members and staff.

Since its start in 2008, Party Time has chronicled fundraising concerts, baseball outings, fishing trips and much, much more.

GAO provides Congress, the heads of executive agencies, and the public with timely, fact-based, non-partisan information that can be used to improve government and save taxpayers billions of dollars.

Taxpayers for Common Sense is a nonpartisan budget watchdog that has served as an independent voice for the American taxpayer since 1995.

Comprehensive, independent, and nonpartisan information about federal enforcement, staffing, and spending.

MIP has recently merged with OpenSecrets. There will be a new site launched later this year, but they will maintain this one until it is ready.