Children today have significant access to the internet: mobile phones, IiPads, laptops, tablets and gaming devices, to name but a few.
There are a great number of 'social media' websites and applications that children are keen to sign up to or join.
Please be aware that there are different age restrictions for different sites / applications.
There are lots of useful websites aimed at parents to ensure your children are safe and responsible whilst on the Internet.
The NCPCC website, for example, has some great advice for parents regarding their children's use of the Internet and Social Media.