There are a number of ways to redirect site visitors from one domain/website to another. The so-called URL redirection is commonly recommended. In contrast to parking a domain, a URL redirection can be done only if the domain name in question is hosted. What this means basically is that you can still open any content if you have a direct link to it and you may set up e-mail addresses or subdomains and use them. This kind of feature has many practical uses - if you decide to switch your domain, you can redirect the traffic, but the e-mail messages with the old one will still be active in the event that you are communicating with customers or partners. If you have 2 very similar websites and you would like to rebuild one of them, you could redirect the site visitors to the other site so as to prevent losing potential customers, while you'll still be able to access the admin area for the first site and improve it.