If you want to find out more information about how Pokémon Go works as well as helping to keep your children safe whilst using Pokémon Go you can find a parent's guide here, full of really useful information and advice.  
The NSPCC has useful information for parents to help you keep your child safe. 
Net Aware is your guide to the social networks your children use. It gives you an outline of the network, a guide lower age limit and children's comments et cetera. 
The NSPCC site also has a share-aware site to help parents discuss safety. 

Have you thought about your role in keeping your children safe online?  

You can read this very useful magazine written by vodafone 
for free by clicking here.