Bongo

While I appreciate what you are attempting to do - the ramifications of applying filters at the ISP level will be at minimum ineffective and result in false-positives and much reduced throughput when our internet connections are already far behind world standards. This has all the hallmarks of religious-based crusade. Leave filtering to the end-user, and police the use of these illegal sites through existing methods (read: the AFP) which I assume already red-flag users who access these known sites (the ones you plan to blacklist).