This is not a blocking or filtering isp AFAIK but just very strict rules. Which barely makes it relevant in this thread topic. But Optimum Online has come to our notice after a user noted they'd been sent a letter of warning from them for uplding copyright material whilst using Kazaa. The companies rules are here: 1. http://www.optimumonline.com/index.jhtml?pageType=terms & also 2. http://www.optimumonline.com/index.jhtml?pageType=aup