Recently saw a post where some one posted about www.untangle.com gateway server. Looking it over, I saw content filtering feature, and remembered I had promised the wife to turn content filtering back ...

Many products on the market now control access to a range of network services, including instant messaging, FTP access, e-mail, file sharing, streaming media and others. Furthermore, content filtering ...

we use lightspeed here. it does more than web filtering though. i work for a school district. let me know if you want any more info.