1. A computer-implemented method for measuring an efficiency of a social media campaign (campaign) presented on a profile page on a social network, comprising: collecting searchable activity data of members having profile pages on the social network from a remote server of the social network using a communication network; extracting, from the activity data, interaction data representing audience feedback occurring on the profile page of the campaign, the profile page of the campaign being one of the profile pages on the social network; assigning a weight to each interaction based on a type of the interaction; estimating an effort score for the campaign, the effort score representing a monetary value spent in developing the campaign; determining an efficiency score of the campaign based on a relationship between the number of interactions, the weight associated with each interaction, and the effort score; presenting the efficiency score of the campaign on a display for viewing.