The people on it didn’t just try to cover the news. They tried to shape it.
That’s their business, of course. But it bears reminding that anytime anyone accused Journolist of being motivated by ideology, its members would hotly deny the charge, and protest that the list existed solely and exclusively for the purposes of disseminating information to its members. Those who were sold this story were lied to.
An additional thought: If Republicans put together anything like Journolist, the charges of “groupthink!” would be non-stop and ongoing. And not just from New Media port-side bloggers, either.