I usually get ~300 pageviews a day here, particularly if I’m not posting much. About ten days ago, I started getting 2000+ hits per day. Two days ago this rose to 15,000 and yesterday to 30,000+. The reason? This post got Stumbled upon ten days ago and clearly went viral in the past 48 hours.
Update (5/4): In the past week, i.e. since the original post, there have been a further 51,817 hits on the post. Back in my Scienceblogs days, I’d have been making a relative fortune on this 🙂