Windows Live Family Safety (Score 1)

It's been mentioned before on here, but I had to chime in. Windows Live Family Safety is an exceptional product; free, and very complete. I have three kids (15, 14, and 7) and it allows me to setup each kids access individually. You are limited to Windows, but my kids are probably in a similar situation to most where they're using Windows at school already, so it wasn't a teaching experience to tell my 7-year old she has to hit Ctrl+Alt+Del before she puts in her username and password :). Good luck, and good for you trying to protect your kids. There are too many parents that are either ignorant (the literal definition, not an insult), naive (that is a small insult), or too lazy (blatant insult) to protect their kids.