Comcast provides a comprehensive McAfee Security Suite for all users. It protect your computer from viruses, spyware, email scams, hackers and online predators. http://security.comcast.net/get-smart/protect-your-family/parental-controls.aspx
What parents should know about Internet safety for their children from Comcast.
http://security.comcast.net/get-smart/protect-your-family/child-safety-online.aspx
Part of the free AT&T Yahoo! Online Protection suite, includes web filter controls, e-mail management, IM controls, and report cards.
http://help.yahoo.com/sbc/tutorials/ypc/start_pc1.html
A useful suite of security applications - available for no charge as part of Charter's High Speed Internet package.
www.charter.com/Visitors/NonProducts.aspx?NonProductItem=65
One of the first and most comprehensive parent controls - however Internet access through AOL is required.
http://daol.aol.com/safetycenter/parentalcontrols