A parked Internet domain is one which is taken, however it's not associated with any other service - web or e mail hosting. Put simply, this type of domain won't load any actual content if you type it inside a browser, but no one else can take it as you've 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 someone else might register it in the meantime if, for example, the website for it is not ready yet. You could create a short-term Under Construction webpage for a parked domain while you're working on your web site, or direct it to another web address - temporarily or permanently. The latter option can be employed if you have already registered domain.com, for instance, and you get domain.net and domain.org, so as to protect a brand name or a trademark. In cases like this, the .net and .org domains can be parked and forwarded to the .com as you don't need separate websites for them.