A parked Internet domain is one that's taken, but it's not connected to another service - web or e-mail hosting. Essentially, such a domain won't open any real content when you type it in a web browser, but nobody else can take it as you have already registered it and you are its owner. The advantage of obtaining a domain and parking it afterwards is that you are able to keep it and not worry that somebody else may register it meanwhile if, for instance, the site for it is not ready yet. You are able to create a temporary Under Construction webpage for a parked domain while you're working on your website, or forward it to another web address - temporarily or permanently. The latter option can be used if you have already registered domain.com, for example, and you acquire 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 directed to the .com because you don't need separate sites for them.