There are more than 30 million registered web domains in the big world of internet. A bulk of these names comes from .com, .net and .org registrations. With so many registered domain names over the internet, it is becoming increasingly hard to get a decent name. A good expired domain name is a big necessity for your expired domain name business. The name that you choose must be credible and commercial enough for your future success. A relevant and practical expired domain name will tell your prospective buyer that it makes sense to buy your domain. However, with so many extensions, which one are you buying for your customer?