As sites like Twitter, Linkedin, Ecademy, Chamber.com, Ushi and Facebook gain value to the business world, many companies have cropped up to analyze and establish what the sentiment is of the collective online intelligence and also to identify individuals with influence and authority. Companies including Klout, ViralHeat and Radian6 all scan blogs and other social media channels with predictive models to determine if the content surrounding a brand or person is negative, positive or neutral.
No one likes to be bombarded with irrelevant offers and content while using their favorite social network. But the more active you are online, the more effectively predictive analytics can work to deliver targeted and relevant offers.
As this information becomes increasingly valuable to businesses of all sizes, these sentiment analysis companies are expected to grow rapidly.
Those are great video to show the trends and data behind social media.