Michael Muller

socialsoftware crowdfunding social-media social-software enterprise design_fiction participatory_design vsd hcic2017 organization socia-ties enterprise-social-media theory enterprise-crowdfunding psychological theory japan ibm connections ibm connections communities brainstorm theoretical sampling grounded theory grounded theory method gtm personal-disposition social-learning cscw2012 trait-theory online-communities lurking contributing decile-analysis hcic uc-irvine cscw hci grounded-theory cmu chi2010 file-sharing returnoncontribution metric roc socialmedial filesharing socialmedia curators third-space hybridity appropriation participatory design salzburg eparticipation e-participation personal retrieval social software social-bookmarking group2009