DNS Angel a free portable tool to filter and block adult websites. The application changes your DNS server to a more family-friendly option in a click..

We suspect that Google's engineers are also watching -- and collecting data on -- which sites its users go out of their way to permanently block from appearing in their search results.

However, if you want to protect your kids from seeing adult content or violent sites, then this post will give you all the methods to block such sites from your kids computer. Read on to know more.