A gmail account is a google e-mail account. The storage is around twice that of a hot mail, and e-mail operates like a forum with conversation window. The main concept is that it is an interface account with other google accounts. You can access documents via your e-mail account directly which is really useful, you can also share documents with sme one else. There is google voice mail, you can directly access your google analytics account, plus some other content like gmail mobile, gmail ipod and google buzz. I have an account, why not try it out.