Pornography is far from difficult to find on the internet: mistyping a single word or clicking a seemingly innocent link can easily lead to sites with unwanted content.

Windows Vista includes Parental Controls that can be applied to any user account to deny access to pornographic content. Windows XP (and Vista) users can try the free program Kg, available at Dedicated mill software, such as Netnanny has built-in filters to help block pornography. All web-filtering software relies on web sites having been assigned a rating by other users, but Netnanny is one of the most popular tools, so it can be an effective way to prevent children from being exposed to pornography.