Online business directories are a very popular place to advertise a business. An online business directory is a website in which links to information are organized into a categorical, alphabetical ranking to provide the best results to a search query. Most businesses post their links to a business directory in order improve search engine ranking and get more traffic to their site. By creating your own business directory online, you can generate a good income, improve your search engine ranking, and get links back to your site. Getting links back to your site from other web sites will increase your ranking and therefore increase traffic to your own site.