a few weeks ago I noticed an interesting trend on one of my blogs statistics. It seemed that every Friday (or at least every second one) I was getting on the front page of Digg with one of my posts. This was strange to me as I had not purposely tried to get any of those posts featured in that way but almost as regularly as clockwork they were. Why was this? The answer lay in my weekly email newsletter which I sent, you guessed it, every Friday morning to thousands of readers.