My network admin noticed that my machine was sucking up huge amounts of bandwidth (due to leaving one or two netscape windows on PerlMonks all night/over the weekend). Thus I have installed Squid and am using it as a proxy to block all ad banners, but now I feel guilty over costing PerlMonks and other sites their ad revenue. This script should work fine as a Squid Redirect script (No apache modifications necessary).

On another note, someone who didn't want to screw up their Apache server could set up a Virtual host to do this.