Following the recent drop-off in Yahoo Groups urls (well done, Yahoo!) my spam went 80% to 419 spam. I notice that they are now reverting to non-Yahoo, non-Hotmail, non-Gmail addresses, instead using AOL (a really dumb move, they shut those down extremely quickly), Gala.net, mail.ru, mail2world, etc.
I'm talking 40 - 50 per day when my norm is 10 - 12.
Really, really stupid, especially when you receive 15 in a row saying you've won 15 distinct "lotteries".