Hopefully after yesterday we should be seeing less spam on the site in comments and trackbacks. I upgraded to WordPress 1.5 2 days ago which has some anti-spam measures itself, plus I’ve installed a couple of plugins (yay, proper plugins in 1.5) one of which is called Spam Karma. It’s the business. Normally, I get up in the morning, and there’s usually 30 or 40 spams, 5 or so make it through moderation into the live comment system. Not today; every single one has been binned (correctly) and my email hasn’t gone loopy with moderation requests. I really am impressed with this plugin, and recommend it to anyone running WP 1.5 
Actually, I’d recommend anybody not running WP 1.5 to upgrade and install the plugin, it’s that impressive.
Spam Karma is available from Dr Dave’s blog or is available as a one click install in WP-Plugin Manager (an excellent plugin manager tool) available from Dr Dave’s blog again, listed in the Plugin management section. Highly recommended
Have a nice spam-free blog