I think that there is only one way to keep the internet safe: and that's with you by his side. There are sites that offer protection for kids, but you still can't be too careful.

If you google "Kid Safe internet" there are different things that you can look at to suit your needs.

On a side note, my oldest is nine and doesn't use the computer. There is plenty of time for her to learn to use the internet as she gets older. I know the pace of technology is very high, but we still need to keep in mind the realities of life and keep them active and be able to function without it first.