Many people probably won't be interested in this .. but someone may find it interesting...

http://weblogs.asp.net/oldnewthing/a...16/230388.aspx

This person has kept every piece of spam he recieved since mid 1997 and then created statistics using the data ..

I have kept every single piece of spam and virus email since mid-1997. Occasionally, it comes in handy, for example, to add naïve Bayesian spam filter to my custom-written email filter. And occasionally I use it to build a chart of spam and virus email.
anyway have a look it shows some interesting facts