Don’t even blink yet.
You’re getting an email from me right now with a link in it.
Go to your email inbox and find your confirmation email, then click the link inside to get the stuff you just signed up for.
P.S. If you use Gmail with tabs, you’ll probably find your confirmation email on the Updates or Promotions tab. To make sure you don’t miss any goodies, drag the email from there to the Primary tab and say “Yes” when Gmail asks about future messages.
P.P.S. If you can’t find your confirmation email, check your Spam folder and any other folders it might have gone to. And if it still hasn’t turned up after a couple of hours, don’t panic — let me know by emailing firstname.lastname@example.org.