WWW spam bots black list

As a result of several months spent watching honeypots with web forums we are publishing dynamically generated "black list" which is renewed once an hour from our network and contains IP adressess from last 20 days. Testing on several servers confirmed that this list contains sources of unsolicited messages in web forums and guestbooks. You can prevent access to many spammers on your webs by using this list. We are planning to publish dynamic stats of these attackers. If you have any comments or questions, please write us.

The list is avalilable here:
http://www.honeynet.cz/bl/ip.txt

Rulesets ready to be used with iptables containing also recent RFI scan sources are available here:
http://www.honeynet.cz/bl/bl-input.txt
http://www.honeynet.cz/bl/bl-forward.txt