A parked domain name is one that's taken, but it is not linked to some other service - web or e-mail hosting. Essentially, this kind of domain address won't open any real content if you type it within a browser, but nobody can take it as you've already registered it and you are its owner. The benefit of obtaining a domain name and parking it afterwards is that you will be able to keep it and not stress that someone else may register it meanwhile if, for example, the site for it is not ready yet. You are able to create a temporary Under Construction webpage for a parked Internet domain while you're working on the web site, or direct it to another web address - temporarily or permanently. The latter option can be used if you have already registered domain.com, for instance, and you obtain domain.net and domain.org, so as to protect a brand name or a trademark. In cases like this, the .net and .org domain names can be parked and forwarded to the .com since you do not need separate websites for them.