Employees' use of social media technologies: a methodological and thematic reviewWith the ubiquity of social media in all aspects of daily life, research interest in the topic has been on the rise. Within the existing body of research on these tools, part of the literature focuses on the use of social technologies by employees. This article employs a systematic literature review methodology, with the objective of identifying the main methodologies and themes of research on employees' usage of social technologies. A total of 66 articles were included in this review, covering five major research themes, that is, legal aspects and policies, human resources management, knowledge management and sharing, learning, and communication. In terms of methodological choices, research on the use of social technologies by employees is found to be fragmented and in need of further quantitative studies, mixed-methods approaches, and theory-based research. Suggestions for future research are provided based on both thematic and methodological considerations.

‘Social media’ has become a widely used term, and the subject of a growing body of academic research, but with little definitional consensus. The purpose of this article is to answer the question: what are social media? We examined existing scholarly definitions of the term ‘social media’ through a Lasswellian lens, by applying directed content analysis to a sample of 23 academic definitions retrieved from the top 179 cited papers on social media in the Web of Knowledge database. The present study makes two main contributions to the theorization of social media. First, we build on previous academic efforts to suggest an inclusive definition of social media based on Lasswell’s act of communication. Second, using the suggested definition, we categorize social media channels based on three dimensions, that is, user, content format and function. This taxonomy is illustrated by presenting a social media cube that aims to help practitioners, managers, researchers and developers to both classify existing social media platforms, and identify prospective ones.

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a b s t r a c tSocial media-based screening is a well-known practice to both recruiters and job seekers. Little is known, however, about how job seekers present themselves on social media, i.e. 'self-disclosure', for employment purposes. This study builds on the theories of hyperpersonal computer-mediated communication, self-efficacy and social exchange to examine job seekers' professional online image concerns, social media self-efficacy, and perceptions of social media effectiveness in the job search as predictors of inappropriate and career-oriented self-disclosures on these media. Findings from a sample of 3374 Italian respondents showed that career-oriented self-disclosure was predicted by all three factors, whereas inappropriate self-disclosure was only predicted by social media self-efficacy. Furthermore, the relationship between professional online image concerns and inappropriate self-disclosure was moderated by age, education and work experience, but not by gender. Theoretical and practical implications are discussed, and directions for future research are suggested.

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