Session 1A: Won't Get Fooled Again: Honesty and Trust Online  
Session Chair: Elizabeth Churchill (Yahoo! Research, USA)

"on my way": Deceptive Texting and Interpersonal Awareness Narratives (Page 1)
Jeremy Birnholtz (Cornell University)
Jamie Guillory (Cornell University)
Jeff Hancock (Cornell University)
Natalya Bazarova (Cornell University)

Reading Between the Lines: Linguistic Cues to Deception in Online Dating Profiles (Page 5)
Catalina L. Toma (Cornell University)
Jeffrey T. Hancock (Cornell University)

Warrants and Deception in Computer Mediated Communication (Page 9)
Darcy Warkentin (University of British Columbia, Okanagan)
Michael Woodworth (University of British Columbia, Okanagan)
Jeffrey T. Hancock (Cornell University)
Nicole Cormier (Ryerson University)

Perceptions of Trustworthiness Online:
The Role of Visual and Textual Information (Page 13)
Catalina L. Toma (Cornell University)

Session 1B: He said She said:
Analyzing Interaction Patterns
Session Chair: Darren Gergle (Northwestern University)

Social Language Network Analysis (Page 23)
Andrew J. Scholand (Sandia National Laboratories)
Yla R. Tausczik (University of Texas at Austin)
James W. Pennebaker (University of Texas at Austin)

Notifications and Awareness: A Field Study of Alert Usage and Preferences (Page 27)
Shamsi T. Iqbal (Microsoft Research)
Eric Horvitz (Microsoft Research)

Receptionist or Information Kiosk: How Do People Talk With a Robot? (Page 31)
Min Kyung Lee (Carnegie Mellon University)
Sara Kiesler (Carnegie Mellon University)
Jodi Forlizzi (Carnegie Mellon University)

Same Places, Same Things, Same People? Mining User Similarity on Social Media (Page 41)
Ido Guy (IBM Haifa Research Laboratory)
Michal Jacovi (IBM Haifa Research Laboratory)
Adam Perer (IBM Haifa Research Laboratory)
Inbal Ronen (IBM Haifa Research Laboratory)
Erel Uziel (IBM Haifa Research Laboratory)

Session 2A: Helping Hands: Communities and Volunteers  
Session Chair: John Tang (Microsoft Research)

Interorganizational Coordination and Awareness in a Nonprofit Ecosystem (Page 51)
Jennifer Stoll (Georgia Institute of Technology)
W. Keith Edwards (Georgia Institute of Technology)
Elizabeth D. Mynatt (Georgia Institute of Technology)

Eliciting and Focusing Geographic Volunteer Work (Page 61)
Reid Priedhorsky (University of Minnesota)
Mikhil Masli (University of Minnesota)
Loren Terveen (University of Minnesota)

An Empirical Study of Critical Mass and Online Community Survival (Page 71)
Daphne Raban (University of Haifa)
Mihai Moldovan (New Jersey Institute of Technology)
Quentin Jones (New Jersey Institute of Technology)

Session 2B: Meeting in the Middle  
Session Chair: Umer Farooq (Microsoft Corporation)

Lessons from ThoughtSwap-ing: Increasing Participants' Coordinative Agency in Facilitated Discussions (Page 81)
Margaret Dickey-Kurdziolek (Virginia Polytechnic Institute and State University)
Matthew Schaefer (Virginia Polytechnic Institute and State University)
Deborah Tatar (Virginia Polytechnic Institute and State University)
Ian P. Renga (University of Colorado at Boulder)

Throwing Voices: The Psychological Impact of the Spatial Height of Projected Voices (Page 91)
Leila Takayama (Willow Garage)
Clifford Nass (Stanford University)

Exploring Spatialized Audio & Video for Distributed Conversations (Page 95)
Kori Inkpen (Microsoft Research)
Rajesh Hegde (Microsoft Research)
Mary Czerwinski (Microsoft Research)
Zhengyou Zhang (Microsoft Research)

Catchup: A Useful Application of Time-Travel in Meetings (Page 99)
Simon Tucker (University of Sheffield)
Ofer Bergman (University of Sheffield)
Anand Ramamoorthy (University of Sheffield)
Steve Whittaker (University of Sheffield)

Idea Expander: Supporting Group Brainstorming with Conversationally Triggered Visual Thinking Stimuli (Page 103)
Hao-Chuan Wang (Cornell University)
Dan Cosley (Cornell University)
Susan R. Fussell (Cornell University)

Session 3A: Wikipedia as a Collaboration Culture  
Session Chair: David Millen (IBM Research)

Socialization Tactics in Wikipedia and Their Effects (Page 107)
Boreum Choi (Carnegie Mellon University)
Kira Alexander (University of Pittsburgh)
Robert E. Kraut (Carnegie Mellon University)
John M. Levine (University of Pittsburgh)

The Work of Sustaining Order in Wikipedia:
The Banning of a Vandal (Page 117)
R. Stuart Geiger (Georgetown University)
David Ribes (Georgetown University)

Readers are Not Free-Riders: Reading as a Form of Participation on Wikipedia (Page 127)
Judd Antin (University of California - Berkeley)
Coye Cheshire (University of California - Berkeley)

Egalitarians at the Gate: One-Sided Gatekeeping Practices in Social Media (Page 131)
Brian Keegan (Northwestern University)
Darren Gergle (Northwestern University)

Session 3B: Wish You Were Here:
Communication in Families  
Session Chair: Steve Whittaker (University of Sheffield)

Home Video Communication: Mediating 'Closeness' (Page 135)
David Kirk (University of Nottingham)
Abigail Sellen (Microsoft Research Cambridge)
Xiang Cao (Microsoft Research Cambridge)

Making Love in the Network Closet: The Benefits and Work of Family Videochat (Page 145)
Morgan G. Ames (Stanford University and Nokia Research Center)
Janet Go (Nokia Research Center)
Joseph 'Jofish' Kaye (Nokia Research Center)
Mirjana Spasojevic (Nokia Research Center)

Understanding Family Communication across Time Zones (Page 155)
Xiang Cao (Microsoft Research Cambridge)
Abigail Sellen (Microsoft Research Cambridge)
A.J. Bernheim Brush (Microsoft Research)
David Kirk (Microsoft Research and University of Nottingham)
Darren Edge (Microsoft Research)
Xianghua Ding (Microsoft Research and University of California, Irvine)

Session 3C: Groupware Technologies  
Session Chair: Mor Naaman (Rutgers University)

A Sequence Transformation Algorithm for Supporting Cooperative Work on Mobile Devices (Page 159)
Bin Shao (Fudan University)
Du Li (Nokia Research Center)
Ning Gu (Fudan University)

Multiple Mouse Text Entry for Single-Display Groupware (Page 169)
Saleema Amershi (University of Washington)
Meredith Ringel Morris (Microsoft Research)
Neema Moraveji (Stanford University)
Ravin Salakrishman (University of Toronto)
Kentaro Toyama (Microsoft Research India)

Gone But Not Forgotten: Designing for Disconnection in Synchronous Groupware (Page 179)
Carl Gutwin (University of Saskatchewan)
T. C. Nicholas Graham (Queen's University)
Chris Wolfe (Queen's University)
Nelson Wong (University of Saskatchewan)
Brian de Alwis (University of Saskatchewan)

Session 4A: Me, Us and Them: Affiliation, Reputation and Social Media Use  
Session Chair: Ed Chi (Palo Alto Research Center)

Is it Really About Me? Message Content in Social Awareness Streams (Page 189)
Mor Naaman (Rutgers University)
Jeffrey Boase (Rutgers University)
Chih-Hui Lai (Rutgers University)

Student Athletes on Facebook (Page 193)
Cliff Lampe (Michigan State University)
Nicole B. Ellison (Michigan State University)

Sending Mixed Signals: Multilevel Reputation Effects in Peer-to-Peer Lending Markets (Page 197)
Benjamin Collier (Carnegie Mellon University)
Robert Hampshire (Carnegie Mellon University)

Session 4C: Social Software Engineering  
Session Chair: Carl Gutwin (University of Saskatchewan)

API Peer Reviews: A Method for Evaluating Usability of Application Programming Interfaces (Page 207)
Umer Farooq (Microsoft Corporation)
Dieter Zirkler (Microsoft Corporation)

Are You Having Difficulty? (Page 211)
Jason Carter (University of North Carolina at Chapel Hill)
Prasun Dewan (University of North Carolina at Chapel Hill)

Beyond Wikipedia: Coordination and Conflict in Online Production Groups (Page 215)
Aniket Kittur (Carnegie Mellon University)
Robert E. Kraut (Carnegie Mellon University)

Session 5A: Participating Online  
Session Chair: Cliff Lampe (Michigan State)

Understanding Deja Reviewers (Page 225)
Eric Gilbert (University of Illinois at Urbana-Champaign)
Karrie Karahalios (University of Illinois at Urbana-Champaign)

On the "Localness" of User-Generated Content" (Page 229)
Brent Hecht (Northwestern University)
Darren Gergle (Northwestern University)

Determinants of Wikipedia Quality: The Roles of Global and Local Contribution Inequality (Page 233)
Ofer Arazy (University of Alberta)
Oded Nov (New York University Polytechnic Institute)

Inspired by the Audience - A Topic Suggestion System for Blog Writers and Readers (Page 237)
Werner Geyer (IBM T.J. Watson Research)
Casey Dugan (IBM T.J. Watson Research)

Chatter on The Red: What Hazards Threat Reveals about the Social Life of Microblogged Information (Page 241)
Kate Starbird (University of Colorado at Boulder)
Leysia Palen (University of Colorado at Boulder)
Amanda L. Hughes (University of Colorado at Boulder)
Sarah Vieweg (University of Colorado at Boulder)

Session 5B: Collaboration in Place  
Session Chair: Bjoern Hartmann (Berkeley University)

Telling the Whole Story: Anticipation, Inspiration and Reputation in a Field Deployment of TellTable (Page 251)
Xiang Cao (Microsoft Research Cambridge)
Siân E. Lindley (Microsoft Research Cambridge)
John Helmes (Microsoft Research Cambridge)
Abigail Sellen (Microsoft Research Cambridge)

Opening up the Family Archive (Page 261)
David S. Kirk (University of Nottingham)
Shahram Izadi (Microsoft Research Cambridge)
Abigail Sellen (Microsoft Research Cambridge)
Stuart Taylor (Microsoft Research Cambridge)
Richard Banks (Microsoft Research Cambridge)
Otmar Hilliges (Microsoft Research Cambridge)

Three's Company: Understanding Communication Channels in Three-way Distributed Collaboration (Page 271)
Anthony Tang (University of British Columbia)
Michel Pahud (Microsoft Research)
Kori Inkpen (Microsoft Research)
Hrvoje Benko (Microsoft Research)
John C Tang (Microsoft Research)
Bill Buxton (Microsoft Research)

Session 6A: A Bug's Life: Collaborative Debugging  
Session Chair: Michael Twidale (University of Illinois at Urbana-Champaign)

Sources of Errors in Distributed Development Projects: Implications for Collaborative Tools (Page 281)
Marcelo Cataldo (Robert Bosch LLC)

Communication, Collaboration, and Bugs: The Social Nature of Issue Tracking in Small, Collocated Teams (Page 291)
Dane Bertram (University of Calgary)
Amy Voida (University of Calgary)
Saul Greenberg (University of Calgary)
Robert Walker (University of Calgary)

Information Needs in Bug Reports: Improving Cooperation Between Developers and Users (Page 301)
Silvia Breu (University of Oxford)
Rahul Premraj (VU University Amsterdam)
Jonathan Sillito (University of Calgary)
Thomas Zimmermann (Microsoft Research)

Session 6B: Everyday Healthcare  
Session Chair: David McDonald (University of Washington)

Invisible Emotion: Information and Interaction in an Emergency Room (Page 311)
Helena M. Mentis (The Pennsylvania State University)
Madhu Reddy (The Pennsylvania State University)
Mary Beth Rosson (The Pennsylvania State University)

Understanding Together: Sensemaking in Collaborative Information Seeking (Page 321)
Sharoda A. Paul (The Pennsylvania State University)
Madhu C. Reddy (The Pennsylvania State University)

Why the Plan Doesn't Hold - a Study of Situated Planning, Articulation and Coordination Work in a Surgical Ward (Page 331)
Jakob E. Bardram (IT University of Copenhagen)
Thomas Riisgaard Hansen (Cetrea A/S)

Session 7A: Crossing Cultures  
Session Chair: Jeanette Blomberg (IBM Research)

What's it Worth to You? The Costs and Affordances of CMC Tools to Asian and American Users (Page 341)
Leslie D. Setlock (Cornell University)
Susan R. Fussell (Cornell University)

Groups in Groups: Conversational Similarity in Online Multicultural Multiparty Brainstorming (Page 351)
Hao-Chuan Wang (Cornell University)
Susan Fussell (Cornell University)

Street Fighter IV: Braggadocio Off and On-line (Page 361)
Norman Makoto Su (University of California, Irvine)

Session 7B: All in the Family: Living and playing together  
Session Chair: David Ayman Shamma (Yahoo! Research)

The Individual and the Group in Console Gaming (Page 371)
Amy Voida (University of Calgary)
Sheelagh Carpendale (University of Calgary)
Saul Greenberg (University of Calgary)

The Roles that Make the Domestic Work (Page 381)
Jennifer A. Rode (University College London)

Sonic Souvenirs: Exploring the Paradoxes of Recorded Sound for Family Remembering (Page 391)
Lina Dib (Rice University)
Daniela Petrelli (University of Sheffield)
Steve Whittaker (University of Sheffield)

Session 8A: What's That?:
Collaborative Visual Sense-making  
Session Chair: Les Nelson (Palo Alto Research Center)

WeSearch: Supporting Collaborative Search and Sensemaking on a Tabletop Display (Page 401)
Meredith Ringel Morris (Microsoft Research)
Jarrod Lombardo (Averro)
Daniel Wigdor (Microsoft Surface)

Pitfalls of Information Access with Visualizations in Remote Collaborative Analysis (Page 411)
Aruna D. Balakrishnan (Carnegie Mellon University)
Susan R. Fussell (Cornell University)
Sara Kiesler (Carnegie Mellon University)
Aniket Kittur (Carnegie Mellon University)

Pictionaire: Supporting Collaborative Design Work by Integrating Physical and Digital Artifacts (Page 421)
Björn Hartmann (University of California, Berkeley)
Meredith Ringel Morris (Microsoft Research)
Hrvoje Benko (Microsoft Research)
Andrew D. Wilson (Microsoft Research)

Session 8B: Communication Technologies for Social Inclusion  
Session Chair: Madhu Reddy (The Pennsylvania State University)

Social Use of Computer-Mediated Communication
by Adults on the Autism Spectrum (Page 425)
Moira Burke (Carnegie Mellon University)
Robert Kraut (Carnegie Mellon University)
Diane Williams (Duquesne University)

Characteristics of Shared Health Reflections in a Local Community (Page 435)
Andrea Grimes (Georgia Institute of Technology)
Brian M. Landry (Georgia Institute of Technology)
Rebecca E. Grinter (Georgia Institute of Technology)

Survival Needs and Social Inclusion:
Technology Use Among the Homeless (Page 445)
Jahmeilah Roberson (University of California, Irvine)
Bonnie Nardi (University of California, Irvine)