Directories are a kind of website which is used to store businesses and their information. Instead of saving resources to your web browser, you are saving them to the web. Because your bookmarks are online, you can easily access them anywhere you have an internet connection and share them with friends.
Search engines will often list results from bookmarking sites. Therefore, if your site bookmarked, this is an extra opportunity to show up in search results. Please find collection of great directory submission, news, social bookmarking and business listing sites: