The 13th Annual Social Informatics (SIG-SI) Research Symposium "The Social Informatics of Knowledge" will be held from 8:30 - 12:30 on Saturday 28 October at the Hyatt Regency Crystal City, VA, USA, with papers from 13 presenters on topics including fake news, video game design, networks of male sex workers, digital nomads, scientific collaborations, data science norms, and many other cutting edge areas of research. We had a bumper crop of submissions to the workshop, and are excited the make the final schedule available here: https://asistsigsi.files.wordpress.com/2017/07/sigsi_schedule_final.pdf. Full information on the original call, the current schedule, and the related special issue call for JASIS&T are available at https://asistsigsi.wordpress.com/2017/07/12/the-13th-annual-social-informati.... The deadline for early registration is nearing (the early bird rate for the ASIS&T Annual Meeting ends midnight Friday, September 15, 2017, https://www.asist.org/am17/register/), so register today! Prof Eric T Meyer, University of Oxford Professor of Social Informatics & Director of Graduate Studies, Oxford Internet Institute, University of Oxford Turing Fellow, The Alan Turing Institute, London Email: eric.meyer@oii.ox.ac.uk<mailto:eric.meyer@oii.ox.ac.uk> | Web: https://www.oii.ox.ac.uk/people/eric-meyer/ | Twitter: @etmeyer Google Scholar: http://bit.ly/GS-ETMeyer | SSRN: http://ssrn.com/author=912385