A parked Internet domain is one which is taken, however it's not linked to any other service - web or e mail hosting. Essentially, this type of domain address will not open any real content when you type it within a browser, but nobody can take it as you have already registered it and you are its owner. The advantage of obtaining a domain name and parking it afterwards is that you will be able to keep it and not stress that somebody else may register it meanwhile if, for example, the website for it is not ready yet. You can create a short-term Under Construction website page for a parked domain name while you're working on the website, or direct it to some other web address - temporarily or permanently. The second option can be used if you have already registered domain.com, for instance, and you acquire 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 names can be parked and directed to the .com since you do not need separate sites for them.