A parked domain address 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 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 main advantage of getting a domain and parking it afterwards is that you can keep it and not worry that somebody else may register it in the meantime if, for example, the website for it is not ready yet. You can create a short-term Under Construction webpage for a parked domain name while you are working on the website, or direct it to another web address - temporarily or permanently. The latter option can be used if you have already registered domain.com, for instance, and you get domain.net and domain.org, so that you can protect a brand name or a trademark. In this situation, the .net and .org domain addresses can be parked and directed to the .com since you don't need separate websites for them.