[pixelambacht]

I can put your mind at ease: I took a bit of poetic-mathematic license with that number. I figured that the big sites and the small sites together would average a perfect 1000 fresh-cache vistors a day, but in all probability I'm off by at least 3 or 291 visitors :)

[mark-r]

I think you misunderstand the effect of the long tail. For that many sites the average is going to be tiny. And where did the figure of 73 million come from?