It is a method for Internet users to store, organize, search, and manage bookmarks of web pages on the Internet, typically in the form of tags that communally and/or collaboratively become a folksonomy. Folksonomy is also called social tagging, the process by which many users add metadata in the form of keywords to shared content. In a social bookmarking system, users save links to web pages that they want to commit to memory or share by search engine placement, search engine advertising, search engine placement and search engine promotion. These bookmarks are usually public, and can be saved on the sly, shared only with particular people, groups, networks, or public and private domains. The allowed populace can usually view these bookmarks chronologically, by category or tags, or via a search engine. Most social bookmarking services give confidence users to organize their bookmarks with casual tags instead of the traditional browser-based system of folders, although some services feature categories or a grouping of folders and tags. They also enable viewing bookmarks related with a chosen tag, and include in sequence about the number of users who have bookmarked them. Some social bookmarking services also draw inferences from the relationship of tags to create clusters of tags or bookmarks. This allows subscribers to become cognizant of new bookmarks as they are saved, shared, and tagged by other users. These services have matured and grown very popular, they have added extra facial appearance such as ratings and comments on bookmarks, the ability to import and export bookmarks from browsers, emailing of bookmarks, web annotation, and groups or other social network features.