A parked domain is one which is taken, but it is not linked to some other service - web or e mail hosting. Basically, this kind of domain won't load any real content when you type it within a web browser, but no one can take it as you've already registered it and you are its owner. The main advantage of getting a domain and parking it afterwards is the fact that you will be able to keep it and not worry that somebody else might register it in the meantime if, for instance, the website for it is not ready yet. You could create a temporary Under Construction website page for a parked Internet domain while you are working on your web site, or direct it to some other web address - temporarily or permanently. The latter option can be used when you have already registered domain.com, for instance, and you obtain domain.net and domain.org, so that you can protect a brand name or a trademark. In this situation, the .net and .org domain names can be parked and forwarded to the .com as you do not need separate sites for them.
