A parked domain is one which is taken, however it's not linked to another service - web or e mail hosting. Put simply, this kind of domain won't open any actual content if you type it within a web browser, but nobody can take it as you have already registered it and you are its owner. The best thing about obtaining a domain name and parking it afterwards is that you are able to keep it and not worry that somebody else may register it meanwhile if, for example, the site for it is not ready yet. You can set a temporary Under Construction page for a parked Internet domain while you are working on your website, or forward it to some other web address - temporarily or permanently. The second option can be used when you have already registered domain.com, for example, and you get domain.net and domain.org, so as to protect a brand name or a trademark. In such a case, the .net and .org domain names can be parked and forwarded to the .com because you don't need separate sites for them.