The concept of online business directories is actually a pretty simple one. These webistes are very similar to the Yellow Pages in the real world, only these listings are only online. (Actually Yellow Pages.com is now one of the largest online directories as well.) A directory is just a listing place for a number of websites. Any type of website could be listed in an online business directory. Some directories are huge and cover every topic that someone could create a website for, while others are very small and specific to a specific niche. Let's use an example. Say you are a model airplane enthusiast and you want to find some websites that cater to your specific interest. You could look through a huge online business Andaman directory such as Google My Business and find several dozen websites that are related to model airplanes. Or you could look for an online business directory that is niche-specific, which means that the entire online business directory would be based on hobbies such as model airplanes. With a niche-specific directory you may find even more websites that are based on your specific interest than what you could find on the larger directories.
Since online business directories are organized by categories, finding websites that relate to a specific interest such as model airplanes is very easy. You could find information and websites about model airplanes in your local region too, if you use a regional-specific online business directory. So if you live in Phoenix you could find websites that relate to both model airplanes and the Phoenix area. These places will direct you to websites that you want to find. All you have to do is perform a search in the online business directory for a specific topic or browse through the various categories until you find the type of websites you are looking for. When you perform a search you will be given a list of all of the websites that relate to your search term. You will be presented with a number of links to these websites and each link will have a short description of what you are likely to find on the website. You can read the descriptions and choose to click on the website that best suits you.