There are a lot of ways to redirect traffic from one domain/website to another. The so-called URL redirection is often recommended. In contrast to parking a domain, a URL redirection is possible only if the domain name in question is hosted. What this means essentially is that you can still open any content in case you have a direct link to it and you could create e-mail addresses or subdomains and use them. Such a feature has many practical uses - if you want to switch your domain address, you can forward the visitors, but the e-mail messages with the old one shall still be active if you are communicating with customers or partners. When you have two identical Internet sites and you need to rebuild one of them, you can forward the website visitors to the other site in order to avoid losing potential clients, while you'll still be able to access the administrator area for the first site and improve it.