A parked domain is one which is taken, yet it is not associated with some other service - web or e mail hosting. In other words, this type of domain name won't open any real content if you type it in a web browser, but nobody else can take it as you have already registered it and you are its owner. The benefit of obtaining a domain and parking it afterwards is the fact that you can keep it and not stress that someone else may register it meanwhile if, for example, the site for it is not ready yet. You can create a temporary Under Construction page for a parked Internet domain while you're working on the website, or forward it to some other web address - temporarily or permanently. The latter option can be used if you have already registered domain.com, for instance, and you obtain domain.net and domain.org, in order to protect a brand name or a trademark. In cases like this, the .net and .org domain addresses can be parked and forwarded to the .com because you do not need separate websites for them.