Would there be any way to crowdsource this kind of application? Like wikipedia. 'Heres one source to back up this claim' 'Heres 8 sources that go against this claim'
I generally prefer politifact over snopes. Snopes seems to mix news with fact checking, and the search tool does not distinguish between fact checking and news. In addition, politifact ground their articles to political statements that can be sourced to a specific person, time and place. That create a framing for which a broader subject can be discussed, but also limits the scope to that specific statement.