Second, a software filter can be installed and controlled on your own PC. The software intercepts and blocks websites that don't comply with the filtering system. Some of the best choices include Cybersitter, Cyberpatrol, NetNanny, We-Blocker and WebGuardian. Most of these programs allow parents to turn off controls when they want them off and are managed by a parent's own username and password.
Finally, parents can opt for an intermediary between the ISP and the PC that routes all content through a third party's server, which intercepts inappropriate content. Two of the best of these services include American Family Online and WiseChoice.
No filtering system is foolproof-even the best filters will not eliminate 100% of all objectionable content. But filtering is a good alternative to keeping objectionable or inappropriate sites off your home PC.More on Family Internet Safety