A web directory isn't a search engine, and doesn't display lists of web sites based on keywords. It lists websites by category. Some directories are very general in scope and list websites across a wide range of categories, regions and languages. But there are also a large number of niche directories.
There are two great reasons to submit to directories. First, to acquire more targeted traffic to your website and secondly, to construct link popularity in the anticipation of a getting better page rank in return. Its important to get your website listed in a large number of directories as this will help you get superior search engine rankings. |