The diffusion of a task recommendation system to facilitate contributions to an online community

Y. Connie Yuan, Dan Cosley, Howards T. Welser, Ling Xia, Geri Gay

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


This paper studies the diffusion of SuggestBot, an intelligent task recommendation system that helps people find articles to edit in Wikipedia. We investigate factors that predict who adopts SuggestBot and its impact on adopters' future contributions to this online community. Analyzing records of participants' activities in Wikipedia, we found that both individual characteristics and social ties influence adoption. Specially, we found that highly involved contributors were more likely to adopt SuggestBot; interpersonal exposure to innovation, cohesion, and tie homophily all substantially increased the likelihood of adoption. However, connections to prominent, high-status contributors did not influence adoption. Finally, although the SuggestBot innovation saw limited distribution, adopters made significantly more contributions to Wikipedia after adoption than nonadopter counterparts in the comparison group.

Original languageEnglish
Pages (from-to)32-59
Number of pages28
JournalJournal of Computer-Mediated Communication
Issue number1
Publication statusPublished - Oct 2009
Externally publishedYes


  • Diffusion of innovation
  • On-line community
  • Social network
  • Tie cohesion
  • Tie homophily

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