Blog directories are human edited directories of blogs written by netizens all over the world. It is organized into various categories, made for the purpose of getting a listed blog searched, viewed and rated accordingly. Most bloggers use web directories to list their blogs for better coverage.

The blog directory is hosted on the World Wide Web. Bloggers generally can register in such blog directory sites, and add their blogs under the desired category. These directories are regularly monitored by web crawlers – a search engine program that collects information about websites. Hence, the blogs listed in the directories come under the direct scanning of the search engines and thus the chances of blogs getting listed in the search results gets increased. This provides greater coverage to weblogs. Users who add their blogs can also explicitly mention certain keywords or tags related to the nature of their blog for more optimized search results.