Article hour directory is an online list or catalog of websites. That is, it is a directory on the World Wide Web of (all or part of) the World Wide Web. Historically, directories typically listed entries on people or businesses, and their contact information; such directories are still in use today. A web directory includes entries about websites, including links to those websites, organized into categories and subcategories. Besides a link, each entry may include the title of the website, and a description of its contents. In most web directories, the entries are about whole websites, rather than individual pages within them (called “deep links”). Websites are often limited to inclusion in only a few categories. Article hour is a website with collections of articles written about different subjects. Sometimes article directories are referred to as content farms, which are websites created to produce mass content, An article directory may accept new articles from any contributor, but may require that a new article is unique (not published elsewhere) and not spun. A typical article is around 400-500 words, and tools such as a WYSIWYG editor for writing and submitting an article may be provided.

There are two ways to find information on the Web: by searching or browsing. Web directories provide links in a structured list to make browsing easier. Many web directories combine searching and browsing by providing a search engine to search the directory. Unlike search engines, which base results on a database of entries gathered automatically by web crawler, most web directories are built manually by human editors. Many web directories allow site owners to submit their site for inclusion, and have editors review submissions for fitness. An author box may be provided for personal information about an author, including a link to the author’s website. Tags or categories may be used to organize articles and to help with search engines since tags or categories act as keywords that identify the topics covered in the article. Many directories pay the author for his/her participation. Some directories review articles before they are published and there may be a waiting period of several days before a new article appears. This helps to eliminate low quality submissions, including duplicate articles, spam and spun articles.

Article hour directory may be general in scope, or limited to particular subjects or fields. Entries may be listed for free, or by paid submission. Article directories allow users to submit unique articles to the directory for content syndication. These directories allow articles to embed links to other websites with relevant anchor text. Popular article directories are considered authority sites and are constantly crawled by search engine bots. Webmasters submit articles with relevant anchor text linking back to their site to obtain backlinks.