Kid Filter

Kid Filter is a filter that blocks more than 4500 offensive websites from reaching your computer and your children. It provides peace of mind for parents who are understandably worried about what their children might see on the internet unsupervised. Kid Filter does not suffer from the problem that most web filtering programs do of blocking out many sites that are in fact, perfectly appropriate for young children to see. Not only that, but KidFilter has a once-only cost of just $9.95, whereas similar programs cost over $50 and/or have costly monthly or yearly subscription fees.
When you buy the full version, you have the option of downloading the whole installation package or just the upgrade, for those who already have the demo version installed.