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This paper compares the relative advantages of two models (a) a two‐factor (i.e. source and channel) choice model; and (b) a theory of planned behaviour (TPB)–based acceptance model, developed to explain electronic government (e‐government) service adoption. The models were empirically validated in the government‐to‐citizen (G2C) anti/counter‐terrorism (ACT) service domain by a telephone survey administered to a sample of 500 US residents systematically drawn from the mainland USA. The structured telephone survey questionnaire measured respondents' intentions to use Web‐based ACT services and their beliefs and attitudes towards various ACT service providers (e.g. the Federal Bureau of Investigation, Department of Homeland Security, local police, non‐governmental organisations (NGOs) and news companies) and media (e.g. Web, email, telephone, TV, newspapers, postal mail). The results of multiple‐regression analysis of the 500 interview responses show that the source–channel choice model can explain the service usage intentions as well as, or better than, the TPB‐based acceptance model. Both service source and channel exerted consistent and substantive effects on citizens' intention to use ACT services, explaining, on average, more than 43% of variance in the dependent variable. In contrast, subjective norms in the TPB‐based model seemed to have a marginal effect. Privacy protection and integrity of the service source appeared to be key antecedents of source preference, while the influence of channel attributes on channel preference varied widely depending on the type of services. This study provides an empirical basis for the validity and applicability of the source–channel choice model and offers insightful and prescriptive knowledge for e‐government initiatives and service providers.

Strengthening security within the domain of shared knowledge is a critical issue, and great challenge, to businesses today. A number of different protocols currently available offer an array of benefits and limitations.

In response to the lessons and criticisms over the recent large-scale disasters and relief activities during the disasters, many government organizations around the world have recently launched initiatives to improve their disaster management capabilities. While a revision of disaster management capability may entail transformation of organizational structures, business processes, and technical infrastructure across multiple organizations, the field of disaster management suffers from lack of theoretical foundation. With a special emphasis on information and communication technologies (ICTs), the chapter provides a review on various issues examined in the recent disaster management literature and develops a conceptual framework of the relationships between technological properties of ICTs and multiagency collaboration in disaster management. This chapter contributes to the theoretical foundation of the field by identifying major research issues in the disaster management communications and their relationships with relevant entities and environmental factors. Discussions on future research directions are also presented.

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