The Sydney Morning Herald has a new interview with George R. R. Martin. Here's a teaser:
"When the writing is going really well, I do get lost in it, I almost live in it. It occupies the back of my head. I'm thinking about it constantly. I go to sleep thinking about it. I wake up thinking about it. I cross the street thinking about it – my office is across the street from my house. "I spend all day in Westeros and King's Landing. The real world almost seems to fade away."