Neat site, worth recommending. Just one tiny niggle, in the Acknowledgements. I would replace the wording about thanking the visitors with:
"I would also like to thank YOU, the visitors, for using the site and encouraging me with your feedback."
The reason is that the line as it stands is a tad longer than the column width, so the word "feedback" drops to the second line on its own. Just seems tidier to have it stay on a single line.
Safety Tips for Kids and Teens