NYT article about the changing use of e-mail. Teenagers are using it less old folks using it more. The implication for us dentists is that our middle aged patients do indeed use e-mail. If you follow the link the comments are worth reading as well.
Once it was cool to merely have an e-mail account (or several), but many young people now think of it as old school, and much prefer the zip of texting, instant messaging and social networks.