Given the immense shifts the social networking sites and applications have brought about, a considerable number of researchers in the field of communication studies have turned to study different aspects of social media usage and factors influencing it. This study gathered data from 33318 US non-institutionalized citizens over 18 including 17079 females and 16239 males; they were members of web...

Organizations are inspired by the massive social media use in the private domain and try to filter interactions and knowledge sharing in social media also for professional purposes. Even if the interest in social media is strong in the private domain, the use is far less widespread in organizations. The trajectory of traditional information spread through web platforms into use of new and open ...

Social media has become a fruitful platform on which to study human behavior and social phenomena. However, social media data are usually messy, disorganized, and noisy, which makes finding patterns in such data a challenging task. Visualization can help with the exploration of such massive data. Researchers studying social media often begin by reviewing related research. In this paper, we cons...

social media has quickly become an essential marketing and communication tool for private, public and non-governmental entities across the world to promote their organizational mission, daily events and publications. many citizens use social media to post or share real time photos on a variety of environmental issues such as pollution or littering, forest fires, reported chemical spills in wate...

Citizen sensing: Humans as citizens on the ubiquitous Web, acting as sensors and sharing their observations and views using mobile devices and Web 2.0 Services. Citizen-sensor network: An interconnected network of people who actively observe, report, collect, analyze, and disseminate information via text, links to other resources, and various media including audio, images and videos. Social med...

How does network structure affect diffusion? Recent studies suggest that the answer depends on the type of contagion. Complex contagions, unlike infectious diseases (simple contagions), are affected by social reinforcement and homophily. Hence, the spread within highly clustered communities is enhanced, while diffusion across communities is hampered. A common hypothesis is that memes and behavi...

Introduction. The paper presents findings from a study investigating the health and lifestyle information behaviour of different groups of Icelanders. The paper focuses on the use of social media and its role in current information behaviour. Method. Quantitative methods were used. Two random samples were used in the study and the data were gathered using an internet and a telephone survey. Eac...

Social media may liberate citizens in societies with stringent media controls and accelerate political democratization. Yet, little is known about the relation between social media use and perceived constraints in a semi-authoritarian system. This study draws on Media System Dependency theory to examine this relation in the context of the 2011 Singapore General Election. Our findings, based on ...