Tyler points to this post giving traffic rankings for economics blogs. Econlog was not included because our traffic logs are not public.
Our unique visitors, apart from robots (such as search engines combing the Web), averaged 4762 per day for the month of August. As I read it, that puts us about fourth, behind Tyler, QandO, and Greg Mankiw. But I'll be we're also behind Asymmetrical Information (Jane Galt) and Brad DeLong, who also don't have public traffic stats.