I haven't received the verification email after signing up.

The verification email can take a minute or two to be delivered. If you can't find it in your email account or spam folder after a couple of minutes, try to login and you will be given the option to resend the email.

If you have a Facebook, Yahoo, Google or AOL account, you can verify your email account by simply clicking the corresponding large white button at the top of the sign up page or the login page.