I'm fairly skeptical about stuff coming from "Unnamed Sources" too, but if it is reported in multiple outlets that have developed a reputation over time of actually having legit sources in the know, I factor that in to how credible I believe the news to be.
When the sole report of a story is in a fairly obscure site like TruePundit as an "EXCLUSIVE" report from unnamed sources, I tend to think their sources are imaginary.
It seems like everyone from the left to the right has unnamed sources. David Seeman, Glenn Beck, AP, CNN, the gateway pundit, gotnews.
It seems like news has never been more worthless than now.
Tweet about it came out yesterday:
https://mobile.twitter.com/Thomas1774Paine/status/833838153647661056