Canada’s Globe and Mail has published a good profile of George R. R. Martin. The article is no doubt prompted by the fact that GRRM is touring Canada right now.
Speaking of the tour, for those visitors who might drop by to any of the signings, do check this thread on the Ice and Fire board. A number of fans are trying to meet up at some of these events, and who knows—GRRM might spend an hour or two over drinks after the signing with the BwB.