A parked Internet domain is one that's taken, yet it is not connected to any other service - web or e-mail hosting. In other words, such a domain will not load any actual content if you type it inside a web browser, but nobody else can take it as you have already registered it and you are its owner. The best thing about acquiring a domain and parking it afterwards is the fact that you’ll be able to keep it and not stress that somebody else may register it in the meantime if, for example, the website for it is not ready yet. You could set a temporary Under Construction website page for a parked domain while you are working on the site, or direct 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 acquire domain.net and domain.org, so as to protect a brand name or a trademark. In this case, the .net and .org domain addresses can be parked and forwarded to the .com as you do not need separate websites for them.