There are a lot of web directories that can be found online. Their number keeps on growing everyday because more and more people are relying on directories to make their online research a whole lot easier. A lot of website owners also take advantage of these web directories because they are able to advertise their paid membership websites and their online businesses without paying much for advertising. Fees for advertising can have really high costs and it is not advisable for beginner entrepreneurs to spend too much trying to make their businesses known online. But if they choose to submit site URLs to free directories then they would not have to spend for advertising and their businesses would still grow.