A parked domain is one that's taken, but it is not connected to another service - web or e-mail hosting. In other words, this kind of domain will not open any actual content in case you type it inside 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 and parking it afterwards is that you can keep it and not stress that somebody else could possibly register it in the meantime if, for example, the site for it is not ready yet. You may set a short-term Under Construction webpage for a parked Internet domain while you're working on the website, or forward it to another web address - temporarily or permanently. The latter option can be used when you have already registered domain.com, for example, and you obtain domain.net and domain.org, so that you can protect a brand name or a trademark. In cases like this, the .net and .org domain addresses can be parked and directed to the .com because you don't need individual websites for them.