Purpose -This study aims to understand the impact of users' privacy concerns on their acceptance of social networking web sites (SNWs). Design/methodology/approach -This paper develops two research models, with privacy concern conceptualized either as an antecedent of acceptance intention, or as a moderator of the relationships in the technology acceptance model (TAM). Using a survey questionnaire, empirical data were collected from 428 undergraduate college students. Structured equation modeling was used to test the validity of the proposed research models. Findings -The privacy concerns of the research respondents were found to be statistically significant. However, they did not directly affect users' acceptance of social networking web sites. Instead, privacy concerns did moderate the effects of perceived usefulness, and perceived ease of use, on users' intention to continue to use SNWs.Research limitations/implications -The study identifies the theoretical foundations of privacy and privacy concerns in the context of SNWs. This empirical study, based on an established theoretical foundation, will help the research community to gain a deeper understanding of the impacts of privacy concern in the context of social networking. Practical implications -The findings of this study can provide SNW operators with useful strategies and tactics to enhance users' acceptance depending on their level of privacy concern. Originality/value -With the worldwide rapid growth of SNWs, there have been ongoing concerns about how users' private information is viewed or used by others. This study provides much needed empirical evidence about the impact of privacy concerns on users' acceptance of SNWs.

BackgroundChina’s mHealth market is on track to become a global leader by industry size. The Chinese mobile app market and health care system have peculiarities that distinguish them from other app markets. To date, Chinese mHealth apps have not been systematically investigated.ObjectiveThe objective of this study was to provide an overview of Chinese mHealth apps as of December 2015.MethodsWe identified and investigated the most downloaded apps from the iOS and Android platforms. For each app, we analyzed and recorded its main service offered, mHealth initiative, disease and specialty focus, app cost, target user, Web app availability, and emphasis on information security. Standard descriptive statistics were used.ResultsA total of 234 apps met the inclusion criteria and were investigated. The apps targeting nonhealth care professionals focused on providing telemedicine and appointment-making services. The apps targeting health care professionals focused on education and peer reviewed articles. The most common disease-specific apps focused primarily on diabetes, hypertension, and hepatitis management. Most apps were free and available on both iOS and Android platforms.ConclusionsThe primary mHealth initiatives targeted by the apps reflect Chinese patients’ demand for access to medical care. Disease-specific apps are also representative of disease prevalence in China. Government press releases suggest that new policies on the horizon may shift the industry.

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One of the key factors that distinguishes the intelligent business enterprise of the 21st century is the emphasis on knowledge and information. Unlike businesses of the past, the fast, high-tech, and global emphasis of businesses today requires the ability to capture, manage, and utilize knowledge and information in order to improve efficiency, better serve customers, manage the competition, and keep pace with never-ending changes. Knowledge management is an important means by which organizations can better manage information and, more importantly, knowledge. Unlike other techniques, knowledge management is not always easy to define because it encompasses a range of concepts, management tasks, technologies, and practices, all of which come under the umbrella of the management of knowledge. This chapter takes a broad view of the topic of knowledge management and aims to provide a comprehensive overview of knowledge management — the technologies, processes, and concepts involved, and the challenges and future of this important area.