A parked domain is one which is taken, but it is not linked to another service - web or e mail hosting. Basically, this kind of domain address will not open any actual content if you type it inside an Internet 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 name and parking it afterwards is that you’ll be able to keep it and not worry that somebody else might register it in the meantime if, for instance, the site for it is not ready yet. You could set a temporary Under Construction page for a parked domain while you are working on the web site, or forward it to another web address - temporarily or permanently. The latter option can be employed if you have already registered domain.com, for example, and you get domain.net and domain.org, in order to protect a brand name or a trademark. In such a case, the .net and .org domain addresses can be parked and directed to the .com since you do not need different sites for them.