Gerhard Fischer Pamela Jennings Mary Lou Maher Mitchel Resnick Ben Shneiderman Creativity challenges and opportunities in social computing. 3283-3286 2009 CHI Extended Abstracts http://doi.acm.org/10.1145/1520340.1520470 conf/chi/2009a db/conf/chi/chi2009a.html#FischerJMRS09