https://www.nspcc.org.uk/keeping-children-safe/online-safety/ - NSPCC 

https://nationalcollege.com/news/what-is-online-safety - Online College

https://saferinternet.org.uk/ - Safer Internet

https://www.getsafeonline.org/ - Get Safe Online

https://kidshealth.org/en/teens/internet-safety.html - Kids Health (Teens)

https://beinternetawesome.withgoogle.com/en_uk/ - Be Internet Awesome

https://www.ceop.police.uk/Safety-Centre/ - CEOP 

https://www.barnardos.org.uk/blog/keeping-your-child-safe-their-smartphone - Smartphone Safety

https://www.childline.org.uk/info-advice/bullying-abuse-safety/online-mobile-safety/ - Online Mobile Safety