started to ask myself this question about tree days ago, when the traffic to my blog quadrupled. It was not difficult to answer this question and maybe you already know who he is. But I was really puzzled by the increase of traffic to my site, in particular from one referring URL which was from the website StubleUpon. It turns out that after my recent post about Hittail, the “mastermind” behind the widget, Mike Levin has noticed my article and submitted my website to StumbleUpon.