These sites will help you to keep your children e-safe:
Childnet International - Information and resources to help parents keep their children safe online.
http://parentinfo.org/ is a site for schools and parents. The parent zone's work has focussed on the impact of digital technologies on families.
NSPCC Share Aware On-line Safety Advice from the NSPCC - including guidance on apps and games - as well as Parents Guide to Minecraft.
http://InternetMatters.org is a portal dedicated to making sure all parents are only a click away from advice, tips and support about online safety.
The Ultimate Parent Guide for Protecting Your Child on the Internet - Whilst this site talks about US statistics -patterns are similar in UK - What parents can do is good advice