Novak, in an interview, said his sources had come to him with the information. "I didn't dig it out, it was given to me," he said. "They thought it was significant, they gave me the name and I used it."
Well that is in direct contradiction to this from the NYT:
"White House Deputy Chief of Staff Karl Rove told Fitzgerald that he first learned the identity of the CIA agent from syndicated columnist Robert Novak, according a person familiar with the matter.