tain that improvements to existing social Q&A services are necessary to allow people to fully leverage their knowledge and gain expertise from other users. The three solutions presented all are capable of resulting in social Q&A services that are more sensitive to our individual needs and constraints.

Biography

Gary Hsieh is a PhD candidate in the Human-Computer Interaction Institute at Carnegie Mellon University. His broad interests are in Human-Computer Interaction, Computer Mediated Communication and Behavioral Economics. Specifically, he is interested in studying, designing and developing technologies to enable people to communicate and interact in ways that are efficient and socially optimal.

Acknowledgements

The author thanks his collaborators on these projects: Scott Hudson, Robert Kraut, Scott Counts, and Jennifer Lai, and Karen Tang for offering insightful feedback on how to frame this article.

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