thirteen - 3:27 am on Aug 13, 2011 (gmt 0)
You may also add additional conditions based upon User-Agent, referer and even headers to reduce the chances of innocents being denied.
I don't want to deny a whole class of Comcast and Psinet IP Addresses.
Is it possible to deny just by the "Referral"? I know the website name and can use it as the criteria to start the denial.