1. A method of providing a content discovery platform for optimizing social network engagements, the method is implemented in one or more servers programmed to execute the method, the method comprising: retrieving social media data from registered users on one or more social networks, wherein the social media data includes one or more URLs associated with one or more articles, respectively; computing a social importance score for each URL of the one or more URLs; and ranking the one or more URLs by social importance score.