A parked Internet domain is one which is taken, but it is not associated with some other service - web or email hosting. In other words, this type of domain won't load any real content in case you type it within a browser, but no one else can take it as you have already registered it and you are its owner. The benefit of obtaining a domain name and parking it afterwards is that you will be able to keep it and not worry that someone else may register it meanwhile if, for instance, the site for it is not ready yet. You may set a temporary Under Construction website page for a parked domain while you're working on your web site, or forward it to some other web address - temporarily or permanently. The second option can be employed if you have already registered domain.com, for instance, and you acquire 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 addresses can be parked and directed to the .com since you do not need different sites for them.