<P> Social networking sites try to get users to use their real names, interests, and locations, rather than pseudonyms . These website's leaders believe this makes the social networking experience more engaging for users . On the other hand, uploaded photographs or unguarded statements can be identified to an individual, who may regret this exposure . Employers, schools, parents, and other relatives may be influenced by aspects of social networking profiles, such as text posts or digital photos, that the posting individual did not intend for these audiences . On - line bullies may make use of personal information to harass or stalk users . Modern social networking websites allow fine grained control of the privacy settings for each individual posting, but these can be complex and not easy to find or use, especially for beginners . Photographs and videos posted onto websites have caused particular problems, as they can add a person's face to an on - line profile . With modern and potential facial recognition technology, it may then be possible to relate that face with other, previously anonymous, images, events and scenarios that have been imaged elsewhere . Because of image caching, mirroring and copying, it is difficult to remove an image from the World Wide Web . </P> <P> Many formal standards and other technical specifications and software define the operation of different aspects of the World Wide Web, the Internet, and computer information exchange . Many of the documents are the work of the World Wide Web Consortium (W3C), headed by Berners - Lee, but some are produced by the Internet Engineering Task Force (IETF) and other organisations . </P> <P> Usually, when web standards are discussed, the following publications are seen as foundational: </P> <Ul> <Li> Recommendations for markup languages, especially HTML and XHTML, from the W3C . These define the structure and interpretation of hypertext documents . </Li> <Li> Recommendations for stylesheets, especially CSS, from the W3C . </Li> <Li> Standards for ECMAScript (usually in the form of JavaScript), from Ecma International . </Li> <Li> Recommendations for the Document Object Model, from W3C . </Li> </Ul>

Uses of the internet and world wide web