Our experience with web filtering is the differences in tools are _completely_ swamped by the quality and depth of the blacklists. (The reverse of course is also true: lack of good blacklists will doom_any_ filtering tool.) We currently have over 500,000 (!) sites listed in just the porn section of our blacklist. With quality lists like these, any old tool will do a decent job. Lots of folks need to get such lists reasonably and regularly (quarterly?). Useful lists are far far too large to be maintained by local staff. Probably what's needed is a mechanism whereby everybody nationwide contributes, some central site consolidates and sanitizes, and then publishes the lists. This would be a huge effort. It's not easily possible even with lots of clever scripts and plenty of compute power. We've already seen more than a handful of "volunteers" swallowed up by similar efforts. thanks! -Chuck Kollars __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
