Apple has purchased social analytics firm Topsy for more than $200 million, reports The Wall Street Journal. According to its website, Topsy is a social search and analytics company that partners with Twitter to maintain an index of Tweets. Topsy also makes products to search and analyze trends on social websites like Twitter and Google+. With its analytics tools, companies can analyze keywords by several different metrics such as activity, exposure, geography, or general sentiment. The Topsy website serves as a search engine that looks through shared content on social networks and ranks results based on a social influence algorithm.Topsy specializes in data from Twitter, offering tools to analyze twe
