Check out my post, Are You Thinking About Giving Younger Kids E-mail this Summer, a piece that I wrote about a year ago.
Summer is the time when many digital children start using e-mail accounts — and often the laid back summer lifestyle means that parents spend less time helping their children develop strong and collaborative digital habits.
Last year’s post offers parents some ideas and suggestions for getting started and setting limits.
Hundreds of digital options — e-mail is only one of them — are available and waiting for your child to discover them, so in the final analysis you cannot prevent digital access. You can, however, make decisions help you focus on educating your child about digital citizenship.
Media! Tech! Parenting! 
Very thoughtful post. I not only read this blog, but I referred to it in an Internet Safety talk I gave for parents at my school. Thanks for your fine work.