Discovering Key Actors of Group on Social Media for Effective Management

The power of unofficial groups sometimes is stronger than official groups in the organization. The key persons in the network of organization also can help manage effectively. This research used social network analysis to investigate the effect between Facebook and LINE. We also used three indicators of degree centralities to infer the power on different social network. The results revealed the members have official position are not necessary in the center of the social network. The influence of message delivery is stronger from unofficial groups. The findings also showed key persons from unofficial groups may help companies efficiently manage firms.