ChildnetHas a lot of useful information for parents and carers as well as an area for young people to use.
Safer InternetTips, advice, guides and resources to help keep your child safe online
NSPCCThe NSPCC provide advice for parents and carers on how to help keep children safe online
Internet MattersChildren use the internet in different ways depending on their age and so they’ve developed checklists for parents that give top tips on how to help them stay safe. Internet safety advice for parents and carers broken down into age group (0-5, 6-10, 11-13, 14+)
Some Useful Advice leaflets for parents and carers from Childnet