Ace is the place with the links you need.
It's A Small Liberal Bureacratic/Liberal Media World After All: Dana Priest's husband works at a lefty anti-war outfit that books speaking gigs for Joe Wilson.Mary McCarthy just got fired. That's not the worst thing that can happen to leakers who help papers win prizes. From Edward Jay Epstein's Between Fact and Fiction:
By concealing the machinations and politics behind a leak, journalists suppress part of the truth surrounding a story. Thus, the means by which the medical records of Senator Thomas Eagleton were acquired and passed on to the Knight newspapers (which won the 1973 Pulitizer Prize for disclosing information contained in these records) seems no less important than the senator's medical history itself, especially since copies of the illegally obtained records were later found in the White House safe of John Ehrlichman.
Leaks, Journalsim, and the Right to Know
The rotten heart of investigative journalism
On leaks, bias and truth
A crime the press doesn't care about