answer:OpenDNS.org They provide instructions on the site. Basically, if you’re at home and have a (wi-fi) router, you can config that thing to look at their DNS servers. And then you won’t hafta config each individual PC in your home. If you sign up for a free account, they can provide you with a customizable set of filters to block just about anything you can think of. And you can build your own whitelists or blacklists. Bonus: the OpenDNS services are often faster than what your current ISP uses.