Emails for Kiddos here
Well, dd doesn't have one yet (age 4) but ds has had one for over a year (age 6). It is monitored and we started it because the boy hates writing but loves to type. The only way I could get him to practice writing/spelling was by sending messages back and forth. I set it up and added addresses to close friends and family. It is pretty cute actually. Last night I went in to check on things and he had sent his grandpa a message just saying "XOXOXOXO..."
and grandpa wrote him a nice long email back. He doesn't use it very often but he seems more inclined to "gmail" people (that is what he thinks emailing is called) from time to time over writing them. I can get him to do more work for me that way too. We can be in different rooms and will message each other back and forth. I'll ask him questions and he responds. It has been a great tool for us.
Dh is a programmer and we are a very computer/tech/gadget oriented family. I'd happily wind up stranded on a desert island as long as I had my iphone
kind of thing, lol! Ds will probably be getting his own computer in a year or two. He has a blog, piggy-backed on my own, and a user account through Vista. He knows we can and do monitor it. We have marked favourite sites for him and he can do his own research through kiddie search engines. I trust him and he gets more freedom. Dd will get an account when she can actually read but has a user account and can log on to Starfall or some other prek games/sites.
Computers are a part of our day to day life here. It would be hard for us to deny the kids access anyway when we can barely curb our own usage.