Term: "Directory"

A directory is an Index of different websites compiled by humans rather than a Search Engine's Crawler. Directories can be generalized or divided into specified categories and subcategories. A directory's servers provide relevant lists of registered sites in response to user queries. Directory Registration is an important method for building inbound links and improving SEO performance. However, the decision to include or ignore a site and its directory ranking or categorization is decided by directory editors rather than an Algorithm. Some directories accept free submissions while others require payment for listing. Yahoo! is one of the most popular directories.