For anyone who uses the internet, I would like to commend to you OpenDNS. It's a free service which is compatible with every internet service provider and can even be set up on routers to provide its service to an entire network.
OpenDNS is a free account-based alternative DNS server. By using OpenDNS instead of your default ISP DNS, you get faster resolutions, which means a faster internet. It can also collect statistics of web traffic on a single computer or across the whole network. It can also be configured to block certain content including pornography and phishing websites.
It's my new favorite service. It has a ton of other features, it's easy to set up, it's free, and it really does make the internet faster and safer. I highly recommend it to you.
Monopedilos
http://www.monopedilos.com/article.php/20080219213051654