There are a number of ways to forward visitors from one domain/website to another. The so-called URL redirection is often recommended. In contrast to parking a domain address, a URL redirection can be done only if the domain name in question is hosted. What this means basically is that you could still open any content in case you have a direct link to it and you can create email addresses or subdomains and use them. This sort of feature has many practical uses - if you decide to switch your domain address, you could redirect the visitors, but the e-mails with the old one will still be active in case you are communicating with customers or partners. When you have 2 very similar Internet sites and you intend to rebuild one of them, you can forward the site visitors to the other Internet site so as to prevent losing potential clients, while you'll still be able to access the administration area for the first site and improve it.