Using the source to figure out whether something is accurate/correct has its own issues unfortunately. These include: 1. Editors/writers/management changes, si

Using the source to figure out whether something is accurate/correct has its own issues unfortunately. These include: 1. Editors/writers/management changes, since quite a few media publications have gone from being fairly reliable to biased as all hell based purely on who's taken over there. Or in some (rarer cases), the opposite has happened. So you'd have to make sure older less biased pieces weren't being punished for the actions of the publication in the present. 2. A lot of sources are correct about some things but not about others. It's very possible to have a publication that's terrible at writing about politics in an accurate and unbiased way, but fantastic at writing about technology or sports. So ideally your system would have to detect the subject of the article as well as the publication. However, I guess you could at least add known 'satire' and fake information sites to a 'non credible' list. Like the ones listed here: http://www.snopes.com/2016/01/14/fake-news-sites/ http://www.snopes.com/2016/01/14/fake-news-sites/