I own a new domain, but when I type it into my browser, nothing comes up.
A domain name is not a website. It's simply an address someone uses to find a website. If you would like to have a website, you can purchase hosting plan from http://www.mistercertified.com/hosting/
After that we will send you welcome email with Domain Name Server info (DNS Info) which you need update on your domain manager.
Within 24-48 hours after you enter the DNS info, your new Website will be accessible to anyone in the world to see, including you!