There is this website that helps fight spam.. yeah, the email kind. Basically what it does is find known spammers (by IP) and tells when they visit your site, log them running bots on your site harvesting email addresses. They forward this stuff to proper authorities and prosecute these spammers and harvesters. It's actually really quite interesting! There's a lot you can do, but the most help can be done if you have your own IP. This is completely free. Find out more here:
http://melbelshebel.blogspot.com/200...honey-pot.html