Social media sites like twitter, facebook, youtube & others are now sending large chunks of traffic to the sites. With this, the social media analytics has evolved. Various free & premium social media analytic tools have been providing analysis about the brands & services. Twitter will soon be launching analytics which helps know about the tweets. Facebook insights also provides significant amount of information about the facebook pages. Wikipedia is one of the top social media referrers for many sites. Trends in twitter help know about the type of conversation going on about the product or service. Free tools provide a wealth of information which can be used for search engine optimization & other web related improvements.