\begin{cvlist}
\item {[Workshop Participation]} Sustain Summit, Sint-Gilles, Belgium, January 30, 2020.
\item {[Lecture]} “All Talk? The effects of easier communication interfaces (than user talk pages) on collaborative production.” With Sneha Narayan, Nathan TeBlunthuis, Wm Salt Hale, and Aaron Shaw. Wikimania 2020 Research Track, Stockholm, Sweden, August 17, 2019.
+\item {[Lecture]} “The Growth and Decline of Digital Knowledge Commons.” Knight Foundation Retreat, Center for Advanced Studies in the Behavioral Sciences, Stanford University, Palo Alto, California, May 30, 2019.
+\item {[Lecture]} “The Growth and Decline of Digital Knowledge Commons.” Bloomberg Beta Dinner Gathering, Center for Advanced Studies in the Behavioral Sciences, Stanford University, Palo Alto, California, May 7, 2019.
\item {[Lecture]} “State of Wikimedia Research 2017-2018.” With Tilman Bayer, Reem Al-Kashif, and Mohammed Sadat Abdulai. Wikimania 2018, Cape Town, South Africa, July 21, 2018.
\item {[Lecture and Q\&A]} ``Whither Peer Production?'' Vall de Can Masdeu, Barcelona, Catalonia, Spain, June 3, 2018.
\item {[Lecture]} “Free Software Needs Free Tools.” OpenDev Summit, OpenStack Conference, Vancouver Convention Center, Vancouver, BC, Canada, May 22, 2018.