A few people towards the end of the old thread were mentioning child safty on the internet - can I reccommend the Barnardo's findings available here:
http://www.barnardos.org.uk/resource...fety/index.jsp
or for further reading, the award winning "Just one click" report:
http://www.barnardos.org.uk/whatwedo.../justoneclick/
Cheers,
Sean