GroupLens: an open architecture for collaborative filtering of netnews
CSCW '94 Proceedings of the 1994 ACM conference on Computer supported cooperative work
Using social psychology to motivate contributions to online communities
CSCW '04 Proceedings of the 2004 ACM conference on Computer supported cooperative work
User Motivation and Persuasion Strategy for Peer-to-Peer Communities
HICSS '05 Proceedings of the Proceedings of the 38th Annual Hawaii International Conference on System Sciences - Volume 07
An economic model of user rating in an online recommender system
UM'05 Proceedings of the 10th international conference on User Modeling
Encouraging Contributions to Online Communities with Personalization and Incentives
UM '07 Proceedings of the 11th international conference on User Modeling
Spreading the honey: a system for maintaining an online community
Proceedings of the ACM 2009 international conference on Supporting group work
Citizen noise pollution monitoring
Proceedings of the 10th Annual International Conference on Digital Government Research: Social Networks: Making Connections between Citizens, Data and Government
Content Quality Assessment Related Frameworks for Social Media
ICCSA '09 Proceedings of the International Conference on Computational Science and Its Applications: Part II
Motivating contributors in social media networks
WSM '09 Proceedings of the first SIGMM workshop on Social media
Eliciting and focusing geographic volunteer work
Proceedings of the 2010 ACM conference on Computer supported cooperative work
Personalization via friendsourcing
ACM Transactions on Computer-Human Interaction (TOCHI)
Information Sciences: an International Journal
Tools and architectural support for crowdsourced adaptation of web interfaces
ICWE'11 Proceedings of the 11th international conference on Web engineering
Proceedings of the 7th International Symposium on Wikis and Open Collaboration
Personalized techniques for lifestyle change
AIME'11 Proceedings of the 13th conference on Artificial intelligence in medicine
Learning with personalized recommender systems: A psychological view
Computers in Human Behavior
Behavior change support systems: a research model and agenda
PERSUASIVE'10 Proceedings of the 5th international conference on Persuasive Technology
Behavior wizard: a method for matching target behaviors with solutions
PERSUASIVE'10 Proceedings of the 5th international conference on Persuasive Technology
Understanding user intent in community question answering
Proceedings of the 21st international conference companion on World Wide Web
Motivating participation in social computing applications: a user modeling perspective
User Modeling and User-Adapted Interaction
Evaluating compliance-without-pressure techniques for increasing participation in online communities
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
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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 display social comparisons, information designed to show members how they compare to others in the system. For example, Amazon, an online book store, shows a list of top reviewers. In this study, we investigate the effect of email newsletters that tell members of an online community that their contributions are above, below, or about average. We find that these comparisons focus members' energy on the system features we highlight, but do not increase overall interest in the site. We also find that men and women perceive the comparisons very differently.