A parked domain name is one that's taken, however it's not connected to another service - web or e mail hosting. To put it differently, this type of domain name will not open any real content in case you type it in an Internet browser, but no one else can take it as you have already registered it and you are its owner. The benefit of acquiring a domain name and parking it afterwards is the fact that you can keep it and not worry that someone else could possibly register it in the meantime if, for instance, the site for it is not ready yet. You may set a short-term Under Construction page for a parked domain while you're working on your web site, 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 example, and you acquire domain.net and domain.org, in order 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 individual websites for them.