A parked domain is one which is taken, yet it is not linked to some other service - web or e-mail hosting. To put it differently, this type of domain name will not open any real content when you type it inside a browser, but nobody can take it as you have already registered it and you are its owner. The benefit of obtaining a domain and parking it afterwards is that you will be able to keep it and not stress that someone else could possibly register it in the meantime if, for instance, the site for it is not ready yet. You can set a short-term Under Construction webpage for a parked Internet domain while you're working on the site, or direct it to another web address - temporarily or permanently. The latter option can be employed if you have already registered domain.com, for instance, and you acquire domain.net and domain.org, in order to protect a brand name or a trademark. In such a case, the .net and .org domains can be parked and forwarded to the .com since you don't need different sites for them.