The Yellow Pages ruled the advertising world for 100 years. It was the most widely distributed business directory in the world. Any business wanted to have its name in the Yellow Pages. But times change, and now the important business directories are the ones online, not the printed books that become obsolete in a year. Online directories have several important advantages. For example: • They can be updated instantly. In fact, if the directory owner allows, the business itself can update its listing. • They can specialize in a niche market, so the people who visit the directory are people who... [...]