Clear Duty to the Truth
The best sites demonstrate a clear duty to the truth. For example, the NYTimes:- They have an integrity policy, which they post publicly, discuss openly and modify openly
- They issue Corrections, sometimes 50 years after the printed error
- They cite sources, usually by linking to them, or by citing specific people by name
- When you check on those sources, they agree with what the article said
- They also tend to agree with the total characterization