public service - url filtering

The first thing that comes to my mind is to use something like the MVPS hosts file to get a list

. I don't know of any site that creates a list of bad sites, per se, other than something like "Site Advisor" , which you actually have to know the site url before they will give you a report on it. You can also get "bad domains" from IESpyAd , but you'll need to parse through the RegEdit scripts to find them.

most anti-spyware/adware programmes have an option to protect your pc from threats, this usually involves dumping thousands of sites into your hosts file. spysweeper is one and spybot is another. You might want to leech their lists.

Flamer.

We use SafeSquid, as proxy and application layer firewalling. It has an option to query with in.dnsbl.org, to confirm that the url that the users visit, do not belong to an unwanted domain. If a domain is listed with dnsbl.org, access to that url is blocked. The details are available at

SafeSquid can also use the flat file categorised database, like from urlblacklist.com, to block access to any of the 72 categories. You can download the database once from need to register to get regular updates.