A domain name is just like a pointer on the Internet. Just about every website you've ever been to, and every email you've ever composed, has used a domain name in its address. People register domain names in order to 'stake a claim' to a particular name -- whether for business or personal reasons. Once a domain name is registered to a person or company, it is that person's to use exclusively as long as they continue to pay the yearly renewal fee and abide by the terms of use. But listing your site is not enough, it must be listed on top 20 for you to get visitors out of it. Most searchers do not look beyond the first 20 results. You don't want your site to be the one millionth site indexed on a particular search. For your site to be listed on top of the search engines, you must know the secrets of how the search engines works.