Although some argue that Internet use may erode involvement in public life, the most common Internet behaviors, social communication and information searching, may actually foster social and civic participation. To examine this possibility, we test a series of non-recursive models using a national survey of nearly 3,400 respondents. Two-stage least squares regressions were performed to simultaneously test the reciprocal relationship between frequency of Internet use (i.e., hours per day) and three sets of community engagement behaviors: informal social interaction, attendance at public events, and participation in civic volunteerism (i.e., annual frequency). Time spent online has a positive relationship with public attendance and civic volunteerism. No evidence of time displacement from frequency of Internet use is observed.

Based on uncertainty reduction theory, this paper argues that individuals were motivated to seek information and learn about the September 11 terrorist attacks to reduce uncertainty about what happened. Results from a panel survey indicate that negative emotional response was a strong predictor of efforts to learn. Analyses also show that relative increases in newspaper, television, and Internet use from Wave 1 to Wave 2 were positively related to efforts to learn about the attacks. The findings extend uncertainty reduction theory to the mass media context thereby contributing to our understanding of uses and gratifications.

Although scholars have repeatedly linked video games to aggression, little research has investigated how specific game characteristics might generate such effects. In this study, we consider how game mode—cooperative, competitive, or solo—shapes aggressive cognition. Using experimental data, we find partial support for the idea that cooperative play modes prompt less aggressive cognition. Further analysis of potential mediating variables along with the influence of gender suggests the effect is primarily explained by social learning rather than frustration.

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