I thought it would be a short-lived joke, when I landed on the recent xkcd cartoon and it said, in the pop-up text, "click and drag."
I cluck and drug. And cluck and drug. And 30 minutes later I was still clicking and dragging. Very entertaining. Follow the link – it doesn't embed very well.
My favorite gem: after scrolling down and down and down and down there were these people trapped in a hole. They were hoping someone would friend them on facebook or twitter.