Parents/guardians looking to filter their home internet have several options. We recommend a solution which does not require a software installation on individual devices - such solutions can be easy to circumvent. Many internet service providers offer some type of filtering service for a reasonable fee. You can find out details by contacting your provider's customer service department. For the major providers in our area, visit:
If your provider doesn't offer filtering or if you would like another option, we recommend openDNS - http://goo.gl/rF6lU. The service is easy to set up on your home router. The basic version of the software is free, but for $20 per year you can subscribe to their premium service - including customer support.
Regardless of the solution you select, it is important to remember - no filter is foolproof. They cannot take the place of talking to your children about how they use the internet nor your monitoring of their use.