Update: this competition is now closed. The Digest blog visitor count is currently on 1,958,929 and fast approaching the two million mark. To celebrate, I'm offering a free signed copy of The Rough Guide to Psychology to the 2,000,000th visitor (or the next closest), who should arrive within the next few weeks, depending on traffic to the blog. I'll tweet some reminders as the target draws nearer.
The counter is near the top of the right-hand column of the blog, at the bottom of a box that looks like the pic shown on the right. For tacticians hoping to land on the two millionth visitor spot, there's also a red icon on the left of the Digest screen that shows you how many people are currently on the site. Also, note that there has to be a 20 minute gap for the same IP address (the identifier for a particular computer) to be counted as a new visitor.
The 2,000,000th visitor may come and go unawares of this prize. If so, I'll send the book to the next closest after the two million mark. So if you're near, take a screen-grab and timing and try your luck.