1.Parental Guides on various apps/ online issues available from the National Online Safety UK https://nationalonlinesafety.com/resources/platform-guides/ They cover a range of popular apps and issues such as social media addiction, grooming, sexting etc. The guides offer practical advice and are a great resource for parents.You can access there here https://www.webwise.ie/lockers/cocos-law-lesson/
Another great website is Common Sense Media
https://www.commonsensemedia.org/ It offers reviews, age recommendations and advice on a range of popular social networking sites/chatting apps etc. They provide good articles on a weekly basis.