I’ve been getting flooded all day with spam from IP address 66.197.185.117, which if you do a traceroute you’ll find is a pharmaceutical site. (I’m not linking to it because that would just be rewarding the spam.) Even after IP banning them, they are still hitting the site around 50 times an hour – you can see what the error log looks like “here”:http://brian.weatherson.org/spam2706.html. I’d recommend banning that address, and if you get hit with any spam report it to Google as abuse.