Perhaps someone has said this but a potential implementation problem in the US are anti-trust regulations. Sure, they may come around to seeing it your way since the intent is so good but then again "we all decided to get together and blacklist customers who..." is not a great elevator pitch to an attorney-general no matter how good the intent. Obviously there are ways around that (e.g., it's ok to do credit checks) but one has to be up-front and get approval. I'm just sayin': a) consult with legal counsel before doing anything in "collusion" with competitors. b) this is probably not for smaller ISPs until the legal way is cleared by those with plenty of money for lawyering and lobbying. (I did say "IN THE USA", right?) -- -Barry Shein The World | bzs@TheWorld.com | http://www.TheWorld.com Purveyors to the Trade | Voice: 800-THE-WRLD | Login: Nationwide Software Tool & Die | Public Access Internet | SINCE 1989 *oo*