1. Introduction
The construct “social media” incorporates two different worlds. Social refers to the participation of users, communication, and their relationships. Media focuses on the underlying technical and organizational preconditions like dynamics, interaction, and decentralization [1]. Web 2.0, which is the set of functionalities provided via Internet technology, can be seen as the platform that enables the existence of social media. Therefore, one can define social media as Internet-based applications allowing for creation and exchange of user-generated content (UGC) [2]. This interaction with communities has the potential to add value to the organization, if it is well designed and aligned with the company's business [3]. Organizational application cannot solely be found for primary activities, but also in product development, marketing, sales, product support [3], employer branding, or customer support [4]. Examples for benefits of using social media are customer-aligned product development, improved brand loyalty, increased traffic, reduced costs for product support, [3] and improved knowledge of the market and the market situation [4]–[7].