My only guess is they read the same blogs for topics.
The guys at Breitbart need to get busy finding and breaking into the replacement for Ezra Klein's JournoList blog, and archiving their stuff and then dumping it all over the Web so we can see a) who's in the cabal and b) what they've been up to.
There were a number of big names that weren't on the JournoList. They were talking to one another somewhere else .... but never got outed. They need to be tracked down, found out, archived, and blitzed.