I'm hardly an expert on internet safety, but I am a dad, and I worry about this stuff a lot. Plus, I'm a serious internet nerd. I put this deck together to present at my kids' school. I've got a few tips in it that might help folks who haven't turned their nerdosity to 11.
How to use Google to 'listen' for potential bullying, risky behavior or other information you need to know.
A few apps I've found helpful.
Why filtering software doesn't work.
This is NOT parenting advice!!!! It's a set of things any adult can use. What you do with it is your own business.