Interesting embeddable widget I discovered on Wesley Fryer's blog. It shows how many blog posts etc there have been since you loaded the widget, in real time.
I'm not actually sure how valuable or even how valid such information is. There is no doubt, however, that using it in a presentation, as Fryer intended to do, would be a good way of grabbing people's attention right from the start.
Perhaps it would work well in a classroom setting too, as a starting point for a discussion about what such statistics mean, in a 'real' sense.
You can obtain the widget, and more information about it, from Gary Hayes' website.