Tip: if you don't yet have your own Google account and email address, please see our "Create Gmail Account" tutorial, all on a single, bookmark-able page filled with other tips!
@googlemail.comare both valid, and those in
@google.combelong to Google employees (more info).
Tip: if you have an account with Google, you actually already have a Gmail account! (Just add "@gmail.com" to the end of your username - test it out with our "Gmail Sign in" tutorial.)