Social media has become tremendously popular and generates abundant content. Even though social media holds a rich variety of information, a user cannot reach them if he/she have no connection to the users who have the information. To solve this problem, the personalized recommender function, which can be achieved by appropriate introduction of human intuition and social understanding, is effective. In this paper, we focused on the intermediaries and researched the ability of encouraging the intermediary by study through a questionnaire. As a result, the factors to encourage intermediaries on social media are derived from the characteristic of intermediaries.
