Interactive Media Bias Chart, developed by AdFontes Media
The following organizations monitor and evaluate journalism and reporting, checking for bias and accuracy. Most have their own bias, as indicated.
Accuracy in Media (AIM): perspective is "conservative" or right-leaning
Fairness And Accuracy in Reporting (FAIR): perspective is "progressive" or left-leaning
Media Matters for America: perspective is "progressive" or left-leaning
Media Research Center: perspective is "conservative" or right-leaning
PEW Center on Journalism & Media - nonpartisan research on journalism and news audiences