A parked domain is one that's taken, yet it is not linked to another service - web or e mail hosting. Put simply, this type of domain will not open any real content if you type it in a web browser, but nobody can take it as you have already registered it and you are its owner. The main advantage of acquiring a domain name and parking it afterwards is the fact that you will be able to 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 could create a temporary Under Construction page for a parked domain address while you are working on the 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 obtain 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 forwarded to the .com since you don't need individual websites for them.