This is a wonderful website with many very applicable things curated by two highly professional psychologists that are dedicated to the topic of technology and kids.  There are MANY great blog posts that are relevant to middle school experiences.

While there are paid portions of the site that could be useful to your family (think parenting courses relating to technology) - I cannot speak to those particular aspects as I have not yet previewed them.  

"Launched in May 2014 by our founding partners, BT, Sky, TalkTalk and Virgin Media, Internet Matters support parents and carers to navigate the ever-changing digital landscape. We’re here to offer the best advice and information available to help you engage in your child’s online life and manage the risks they may face online."

Your trusted guide for a fast-changing world.

"Media and technology are at the center of kids' lives every day. From a very young age, kids use technology at home and at school to connect with friends and family and to document their lives and create digital content of their own. With more and more of life happening online, what catches kids' attention isn't always what's best for them, and what companies do with their personal information isn't always clear."

"Fight the New Drug (FTND) is a non-religious and non-legislative nonprofit that exists to provide individuals the opportunity to make an informed decision regarding pornography by raising awareness on its harmful effects using only science, facts, and personal accounts."