Chy's I recamend getting a blocker for your computer.
Or if you run Windows XP you can set up differant log on accounts each of which can have its own rescrictions.
Now as to why arnt the police doing anything about these sights??
The answer lays less in our loaws and more into our ISP's.
See here child porn may be illegal.
but the internet is vast and hasnt many bounderys and the pages you acess may very well be in a country where child porn is NOT illegal.
Therefor there isnt much the police can do about it.
However your ISP on the other hand can.
The police can really only do something if an american downlowds the pictures and even then its just that person who gets in trouble and not the web sight.
America is strong no doubt but we cant rule the world.