When you start work to build a new site on the Internet, you have many tasks to accomplish.
First, you should choose your domain name.
Second, you should install a content management system that will help you to manage your site.
Third, you must generate traffic to your website.
You should not face any problems for the first and second point, but the main problem is "how you can drive traffic to your website?" You have to choose between two ways the free traffic methods or the paid traffic methods.
You can get free traffic from forums or blogs that is related to your website by recommended you as a good source.
You can also get free traffic from social bookmarking and social network sites from people that recommended you.
The best way to make people or webmasters recommended you as a good source of information by building a blog on your website and start providing unique and interesting content.
You can get paid traffic from any PPC program or traffic exchange program.
The problem in all the previous methods, it requires a lot of money or a lot of time.
The fastest and cheapest way to generate instant traffic to your website especially if you have affiliate site is by purchasing an expired domain.
You must know that all the major search engines ranking websites according to their age, quality and quantity of back-links, and the number of pages of your website.
If you purchased an old age domain name with many back-links then you will rank instantly in any search engine for any competitive keyword.
Before you purchase one you must make sure of the following:-

1. The domain name is not banned from search engines.
   
2. The domain name has many back-links.
   
3. The domain name is older than three years.
   
4. The domain name is related to your niche.
   
5. It is better to get a domain name with high page rank.
   

In summary, expired domain names can give you instant traffic but you must choose them wisely.