Internetworkers: http://www.ibiblio.org/internetworkers/

[Ken Pugh <kpughmisc AT pughkilleen.com>]

I use Privoxy (free from privoxy.org).  Not only does it get rid of 
popup's, but it also takes care of a lot of other junk (1 bit graphics, 
ads, etc.).  So even if Netscape 7.X allows through aol ads, they won't 
make it through Privoxy.   You simply use it as a local proxy (Netscape or IE).

Ken