In the world of internet, there are endless directories, which refer to many various subjects. Some of them are websites, and others are blogs, which associated with these sites. Internet blog directory is considered such a taxonomic hierarchical listing of blogs, which are divided according to main topics. Generally, they are appeared from the bolg directory, or via many of search engine ranking. Yet, there are different styles of them, such as way of maintenance or the adding costs of the blog. Cost of adding includes three types, submission directories paid, free completely directories, either with a link back requirement or without this link.

There is an added factor, which distinguishes one internet blog directory from other blogs, which is known as the existence or missing of social networking along with society elements, including discussions in some forums and friendly lists too. However, there are some criticisms of them, they are accused to be irrelevant and no content can be found there, some of them need a link back, and there is a slow act in staff edition of those directories. A last notice is that knowing the basic facts of them is considered the corner stone in dealing safety with them via net