Ad blocking with squid

Hi Folks. Anyone doing ad blocking with Squid cache engine out there ? Is there a comprehensive URL list out there on the net ? Thanx Paul ************************************************ Paul Khavkine Network Administrator DISTRIBUTEL Communications. 740 Notre Dame West, Suite 1135 Montreal, Quebec, Canada, H3C 3X6 1-514-877-5505 x 263 http://www.distributel.net ************************************************