The first keynote at the iCS Symposium is by Alice E. Marwick, whose focus is on the motivations for sharing the various forms of content grouped under the problematic moniker of ‘fake news’. Her recent report with Rebecca Lewis on Media Manipulation and Disinformation Online has shown that such sharing can be highly effective: because so many of us are now sharing news and news-like information online, and because especially younger users and journalists are paying increasing attention to what is happening on social media, it is now possible for mis- and disinformation content to migrate from far-right, fringe spaces through mainstream social media sites and on to hyperpartisan far-right press sites and even the mainstream news media. One of the vectors for infiltrating the mainstream news in this process tends to be Fox News, unsurprisingly.