Over at Technorati, where they track about five million weblogs, they've invented a Book Talk page, tallying the most mentioned books in the blogosphere. AllConsuming does the same kind of thing, and makes it clear what time interval it is talking about. Technorati says the most talked about book is Hugh Hewitt's Blog : Understanding the Information Reformation That's Changing Your World. Which we don't own (yet). All-Consuming says it's Malcolm Gladwell's Blink : the power of thinking without thinking. Which we do own. You can place a hold here.