Today many people with serious diseases use online support groups to seek social support. For these groups to be sustained and effective, member retention and commitment is import...
Social media are constructed from the collective contributions of potentially millions of individuals and present an increasingly common and large scale form of database. As these...
Unlike the questionnaire based friend recommendation scheme used in Social Network Service (SNS) websites nowadays (e.g. online dating sites, online matchmaking sites), we focus o...
Trust building has been acknowledged as one of the critical factor for the success of e-commerce. However, few sources of trust were identified in online transaction. This paper t...
It is increasingly common for online communities to rely on members rather than editors to contribute and moderate content. To motivate members to perform these tasks, some sites d...
F. Maxwell Harper, Sherry Xin Li, Yan Chen, Joseph...