A parked domain is one that's taken, but it's not associated with some other service - web or e-mail hosting. Put simply, such a domain name won't load any real content if you type it within an Internet browser, but nobody can take it as you've already registered it and you are its owner. The advantage of getting a domain and parking it afterwards is that you’re able to keep it and not worry that someone else could possibly register it meanwhile if, for example, the website for it is not ready yet. You can set a temporary Under Construction page for a parked domain name while you're working on your website, or forward it to some other web address - temporarily or permanently. The second option can be employed when you have already registered domain.com, for instance, and you get domain.net and domain.org, so as to protect a brand name or a trademark. In this case, the .net and .org domain names can be parked and directed to the .com because you do not need individual websites for them.