If you wish to register a domain to ensure that no one else is going to take it, but you haven't created the web site for it yet, you may park it. That is a service that registrar companies provide if a domain name isn't connected to any web or e-mail hosting service. This way, you can protect a brand name, for example, and you will own the domain in question even though it will not open any content. If you'd like, you may choose some standard template that the registrar offers, such as For Sale or Under Construction, alternatively you can forward the domain name to a new web address. Your second option is very useful in case you own a number of domains, but you want each and every one of them to open the same site. For example, you can register domain.net and domain.org, then park them and direct them to domain.com. In this example, you will need hosting for the third domain address only and the traffic to the other ones is going to be redirected to it.