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what goes around
             comes around:
          del.icio.us as social space


                               kathy l...
what is del.icio.us?

   browser bookmarks      del.icio.us

saved locally          saved online

organized in folders   o...
research question

how might del.icio.us users
 perceive the presence of others?

how might
 di erent degrees of perceived...
perceived social presence


how might users perceive social presence?

 subscribing to others

 returning bookmarks
josh                                                             donna

                                         http://de...
annotations [tags]

Screenshot utility for web pages
  [graphics mac free]

Maybe a bit too academic, but I like it
 [web2...
tags v. annotations

tags                 annotations

individual           oriented toward others

organize bookmarks   d...
research question

how might perceived social presence
 relate to a user’s
 likelihood of annotating a bookmark?
hypotheses


perceived social presence ➔ social orientation

                         ➔
 has subscriptions
               ...
dataset

8058 users   (Golder & Huberman, 2005)

1.75M bookmarks
195 days     (jul 21, 2005 ~ feb 1, 2006)
avg. del.icio.us user in sample

                                  max
217 bookmarks                     9268
62 annotated...
subscriptions and annotations


48% subscribe to others
23% have mutual subscriptions


30% of bookmarks are annotated
97%...
estimated e ects from regression

                            1        2
# bookmarks               .84**   .77**
avg # tag...
regression predictions
45
                                                43
36


27


                               21
1...
discussion

reading others’ bookmarks conveys presence,
  but returning bookmarks reinforce presence

returning bookmarks ...
thank you!
what goes around comes around: an analysis of del.icio.us as social space
what goes around comes around: an analysis of del.icio.us as social space
what goes around comes around: an analysis of del.icio.us as social space
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what goes around comes around: an analysis of del.icio.us as social space

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slides for the notes presentation @ cscw 06

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what goes around comes around: an analysis of del.icio.us as social space

  1. 1. what goes around comes around: del.icio.us as social space kathy lee stanford university cscw 2006
  2. 2. what is del.icio.us? browser bookmarks del.icio.us saved locally saved online organized in folders organized by tags subscription network public
  3. 3. research question how might del.icio.us users perceive the presence of others? how might di erent degrees of perceived social presence in uence users’ posting behavior?
  4. 4. perceived social presence how might users perceive social presence? subscribing to others returning bookmarks
  5. 5. josh donna http://del.icio.us/network/donna http://del.icio.us/josh/ http://del.icio.us/donna/ http://del.icio.us/network/josh
  6. 6. annotations [tags] Screenshot utility for web pages [graphics mac free] Maybe a bit too academic, but I like it [web2.0 web2con] last night we were taking bets on when del.icio.us would appear in the NYT. no one guessed ‘tomorrow morning.’ [del.icio.us news nyc]
  7. 7. tags v. annotations tags annotations individual oriented toward others organize bookmarks describe bookmarks search bookmarks space to ‘talk’
  8. 8. research question how might perceived social presence relate to a user’s likelihood of annotating a bookmark?
  9. 9. hypotheses perceived social presence ➔ social orientation ➔ has subscriptions # annotated ➔ no. subscriptions bookmarks no. returning bookmarks ➔
  10. 10. dataset 8058 users (Golder & Huberman, 2005) 1.75M bookmarks 195 days (jul 21, 2005 ~ feb 1, 2006)
  11. 11. avg. del.icio.us user in sample max 217 bookmarks 9268 62 annotated bookmarks 9253 2.8 tags per bookmark 47 3/6 subscriptions 371 2/16 returning bookmarks 1026
  12. 12. subscriptions and annotations 48% subscribe to others 23% have mutual subscriptions 30% of bookmarks are annotated 97% of bookmarks are tagged
  13. 13. estimated e ects from regression 1 2 # bookmarks .84** .77** avg # tags .17** .14** uses network .23** # subscriptions .006* # returning bookmarks .19** * p < .05 ** p < .001
  14. 14. regression predictions 45 43 36 27 21 18 20 16 9 0 16 returning solo uses network 6 subscriptions bookmarks
  15. 15. discussion reading others’ bookmarks conveys presence, but returning bookmarks reinforce presence returning bookmarks are subtle recommender systems that convey and reinforce subtle presence encourages metadata?
  16. 16. thank you!

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