ABSTRACT
Ⅰ. Introduction
Ⅱ. Social Media as Communication Media
Ⅲ. Conceptualizing Competing-Complementarity of Social Media
3.1. Demonstrating Complementarity
3.2. Demonstrating Competing Potential
Ⅳ. Punctuated Equilibrium Theory
4.1. Deep Structure
4.2. Equilibrium Periods
4.3. Revolutionary Periods
Ⅴ. Evidencing Competing-Complementarity
5.1. Methodology
5.2. Data and Analysis
Ⅵ. Discussion, Implications and Limitations
6.1. Implications
6.2. Contributions
6.3. Limitations