Web Filtering Software

11 yr old daughter wants access to internet

[JonnyWales]

So far I (or wife) stay in vicinity and make sure nothing dodgy is being accessed unintentionally. However, this is a bit of a pain and I would rather install some sort of filter software to keep everything safe.

My question is what is the best software option in terms of :-

1) Ease of use - I don't want to have to learn how to use another software package so it needs to be as intuitive as possible with the fewer the number of options the better.
2) Price - cheap or even free.
3) Won't interfere with adult using PC.

Thanks

[caine]

some of the internet security software like Norton Firewall has family filter options, which are not bad, also some browsers, and search engines have these options, and together, i'm pretty sure, that unless someone knew that they were on and also knew how to switch them off this should offer a reasonable filter.