Malcolm Gladwell's new book Blink is out, and it looks quite interesting. The subject is on the nature of intuition and first impressions, including their validity (or lack thereof). Here are a couple of reviews, one from Wired and one by Michael Shermer. Since I think that intuitions are rapid integrations of data based on past experiences, rather than some mystical phenomenon, I think Gladwell is on the right track and I look forward to reading his book.