I spoke too soon! Some data is available after all. More would be welcome however as there still isn't much! Livingstone, S. M. and M. Bober (2004) "Uk Children Go Online: Surveying the Experiences of Young People and Their Parents" ESRC London. http://personal.lse.ac.uk/bober/UKCGOsurveyreport.pdf reveals that of 12-19 year old regular internet users 17% contributed to message boards (doesn't separate out 'lurkers' from 'participants' though. Survey data from Pew's first Teen and Parent survey in 2000 reveals 38% of 12-17 year olds go to “web sites and bulletin boards where they can write their opinions about things”. Unfortunately, this question disappeared from (what seems to be?) Pew's only other survey data with teens in it - in 2004. And while I think of it here are the other sources I checked unsuccessfully (but which other researchers interested in young people and Internet use may find handy): Dutton, W. H., C. di Genarro and A. M. Hargrave (2005) "The Internet in Britain: The Oxford Internet Survey (Oxis)" Oxford Internet Institute Oxford. http://www.oii.ox.ac.uk/research/oxis/ OxIS_2005_Internet_Survey.pdf Roberts, D. F., U. G. Foehr and V. M. A. Rideout (2005) "Generation M: Media in the Lives of 8-18 Year Olds" Kaiser Family Foundation http://www.kff.org/entmedia/7251.cfm doesn't seem to have anything in it. NetRatings Australia Pty Ltd (2005) "Kidsonline@Home: Internet Use in Australian Homes" Sydney. http://www.aba.gov.au/newspubs/internet.shtml --- David Brake, Doctoral Student in Media and Communications, London School of Economics & Political Science <http://www.lse.ac.uk/collections/media@lse/study/ mPhilPhDMediaAndCommunications.htm> Also see http://davidbrake.org/ (home page), http://blog.org/ (personal weblog) and http://get.to/lseblog (academic groupblog) Author of Dealing With E-Mail - <http://davidbrake.org/ dealingwithemail/> callto://DavidBrake (Skype.com's Instant Messenger and net phone)