There have been proposed systems to rate Internet content, but none is really widespread at this time. One problem is that online publishers worry their content will be arbitrarily censored by filtering software. On the other hand, at Safe Surf, web sites can voluntarily rate sites and then you can use blocking software to limit your kids' access to sites that have adult content ratings, for example.

The rating system with the most steam is by the Internet Content Rating Association, which allows web site owners to rate their content on a scale of 0 to 4 in categories including sex, nudity, violence, and language. Then you can decide which level of online content your children can access.

Also, sites such as Common Sense Media also review web sites for parents. The best solution? House rules for computer usage and supervised online time for kids.