Dear friends and colleagues — We have two Knight Postdoctoral Fellow openings to join our growing community of empirical researchers of the information ecosystem at UPenn! We would be sincerely grateful for your help in sharing these postings widely! The new postdoctoral posting is supervised by Poli Sci Prof Daniel Hopkins and Annenberg Prof Yphtach Lelkish, and is focused on the impact of emerging technologies and communication media on citizens’ political attitudes and behaviors. Apply by 2/13 - more details: https://infodem.upenn.edu/sas-postdoc/ We're also still accepting (rolling) applications for our Wharton Knight Postdoctoral Fellow with Professors Duncan Watts, Pinar Yildirim, and Dean Knox for scholars interested in media bias, censorship, and advertising: https://infodem.upenn.edu/wharton-postdoc/ Best, Alex Alex C. Engler Executive Director Penn Center on Media, Technology, and Democracy<https://infodem.upenn.edu/> The University of Pennsylvania Amy Gutmann Hall #506 acengler@upenn.edu<mailto:acengler@upenn.edu>