A La Carte
PiggyBack or Subdomain
Web Hosting Package
Once you have a web hosting service you need a Domain Name and once again there are a few Options
You can order your domain name from a service like register.com
You could also become part of an existing domain
You could purchase a package deal from your web hosting service
It is important to remember your web hosting service does not control your domain name even if they helped you acquire it, you can move it at any time