Or any other external source for that matter. i'm looking for the ability to *define* ACLs dynamically, not just statically reference a dynamic list of urls (for example). This is to allow on-the-fly creation of groups, and new policies that apply to those groups, without editing squid.conf and reloading. If this is a stupid idea, or i'm going about it the wrong way - please let me know. I've been a casual user of squid for years but this is the first time I've dug must past the surface. Thanks! David Bishop