A type of Social Media, Social networking websites allow users to interact and create or change content on the site. These sites, of which businesses are now using for marketing purposes, allow users to create their own websites / online spheres (e.g. LinkedIn and facebook), share photographs (e.g. flickr), microblog / text small bits of information to their personal community (e.g. twitter) or recommend information for others to find on the Internet (e.g. del.icio.us and Digg). The sites in this last grouping are also referred to as social bookmarking or social news sites. There are also a growing number of sites that are heavily dependent on mobile and geographic locations, such as foursquare.