NetSmartz is a general internet safety site with lots of useful information. It has specific sites for parents, educators, kids, and more. It is a project of the National Cener for Missing and Exploited Children.
Proper internet safety involves using BOTH a filter AND monitoring software. We couldn’t do a better job than the below website, a frum organization committed to helping people keep clean on the internet.
GuardYourEyes.org – Filters & Monitoring Software
For help figuring all this out – which filters to use, how to install them, how to discuss relevant issues with your children, and anything else, you can call TAG (Technology Awareness Group), a Torah-based group that will answer all your questions (at no charge): 267-295-1954.