Professional ServiceForum Editor, Social Media, ACM interactions (2011-present) Member, Program Committee, 13th International Conference on Human-Computer Interaction with Mobile Devices and Services (MobileHCI 2011) Associate Chair, Papers & Notes Committee, ACM Conference on Human Factors in Computer Systems (CHI 2011) Associate Chair, Papers & Notes Committee, ACM Conference on Computer-Supported Cooperative Work (CSCW 2011) Member, UbiComp Steering Committee, 2009-present; Member, 2009-present Chair / Co-Chair, UbiComp Steering Committee, 2003-2009; Member, 2009-present Faculty panelist, Doctoral Colloquium, 11th International Conference on Ubiquitous Computing (UbiComp 2009) Co-Chair, Program Committee, 10th International Conference on Ubiquitous Computing (UbiComp 2008) Member, Program Committee, 7th International Conference on Pervasive Computing (Pervasive 2008) Member, Program Committee, 9th International Conference on Ubiquitous Computing (UbiComp 2007) Associate Chair, Papers Committee, ACM Conference on Human Factors in Computer Systems (CHI 2008) Associate Chair, Notes Committee, ACM Conference on Human Factors in Computer Systems (CHI 2007) Member, Venture Breakfast Committee, Northwest Entrepreneur Network (NWEN), 2004-2006 Industrial Liaison, ACM 2004 Conference on Computer Supported Cooperative Work (CSCW 2004) General Chair, 5th International Conference on Ubiquitous Computing (UbiComp 2003) Conference Co-Chair, ACM 2002 Conference on Computer Supported Cooperative Work (CSCW 2002) Co-Chair, Technical Notes, International Conference on Ubiquitous Computing (UbiComp 2001) Member, Program Committee, Fifth Message Understanding Conference (MUC 5), 1993
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