The "tools of social media" online systems are designed to enable social interaction through sharing and collaborative creation of information in various formats. They allowed the publication of content by anyone, dropping to almost zero cost of production and distribution to the longtail - before this activity was restricted to large corporations.

They cover various activities that integrate technology, social interaction and construction of words, pictures, videos and audios. This interaction and the way in which information is displayed depends on the various perspectives of the person who shared the contents, since this is part of their history and understanding of the world.

Examples of applications of social media: Blogs (independent editorial content), Google Groups (reference, social networking), Wikipedia (reference), MySpace (social networking), Facebook (social networking), (social networking and sharing music), YouTube (social networking and video sharing), Second Life (virtual reality), Flickr (social networking and photo sharing), Twitter (social networking eMicroblogging), Wikis (knowledge sharing) and numerous other services.

Social media or social networks (an example of social media) have several characteristics that differ fundamentally from traditional media such as newspapers, television, books or radio. First of all, social media depends on the interaction between people, because the discussion and integration between them build shared content, using technology as a driver.

Social media is not finite: there is a certain number of pages or hours. The audience can participate in a social media commenting or even editing the stories. The content of a social media, text, graphics, photos, audio, or videos can be mixed. Other users can create mashups and be advised of updates via feed aggregators.

Social Media signifies a broad spectrum of topics, with different connotations. In the context of internet marketing, social media refer to groups with different properties, where trained and supplied by users, such as forums, blogs, video sharing sites and social networking sites. Social Media Optimization (SMO) is the process of distributing rather between various networks and social media, content created by the public.

The social media are two important aspects. The first, SMO, refers to characteristics that can be improved on a page, tactics that a webmaster can apply to optimize a site for the era of social media. These enhancements include adding links to services like Digg, Reddit and, so pages can be easily saved and shared. Marketing social media, on the other hand, encompasses content creation, memorable, and unique potential to make news. This content can then be spread Through his popularity, or even the creation and transmission of video "viral" on YouTube, for example.

Social media is about being social, and that means to relate and engage with other blogs, forums, and niche communities.

New social media tools are emerging and establishing itself, through natural evolutionary changes - see the blogs who were born just like online journals and had diversified their nature over time, the point of being inclusive, effective tools for generating business , for example.

This means a significant change in the structure of social power, because the possibility of generating content and influence people and decisions cease to be exclusive of large groups capitalized, to become common to everyone. Furthermore, the reduction in the cost of publishing to almost zero enables the production of content also very specific to small audiences - that previously did not justify the economic equation.

Freedom of interactive communication, combined with ease of use of the tools to do so and a participatory architecture in networks, forms the basis of revenue for social media platforms can be classified as one of the most influential forms of media created today. In the interactive version of the web, you can do much more with much less and that is very powerful.