And we end Day One of the ZeMKI 20th anniversary conference in Bremen with another keynote, by the great Cristian Vaccari and his reflections on political participation in the digital age. He begins by looking back on digital media and democracy over the past twenty years: against the backdrop of the emergence and gradual adoption of what was then called ‘new media’, and subsequently social media, accessed now predominantly via mobile devices, we have seen considerable shifts in how we understand these communicative spaces.

In 2006, Time’s famous ‘you’ cover highlighted user-generated content and user agency over their own …

The final speaker in this session at the ZeMKI 20th anniversary conference in Bremen is Stef Aupers, focussing on online conspiracy theories. These are not individual, but collectively shared, discussed, and shaped on social media. Existing research often focusses on platforms conspiracism, emphasising the role of technological features and platform affordances; what is much less frequently examined are the active and collective meaning-making practices through which groups of conspiracy theorists construct their online social identities.

This represents a participatory conspiracy culture which enables the social construction of identity; it performs boundary work through which conspiracist communities define and policy the …

For the first paper session at the ZeMKI 20th anniversary conference in Bremen I am in a session on disinformation and conspiracies, which starts with Marilia Gehrke and Eedan Amit-Danhi, whose focus is on gendered disinformation. Gendered disinformation includes manipulated images, using image editing and increasingly also generative AI; this often references sexuality and personal identity.

Much of the scholarship to date has tended to focus on gender or disinformation, but not on both together; it also tends to focus on intentionality, even though the harm that gendered disinformation produces does not depend on whether this content was shared with …

The next speakers in this session at the AoIR 2025 conference are the great Marie Santini and Debora Gomes Saloes, whose focus is on anti-sustainability narratives in messaging apps like WhatsApp and Telegram. The environmental agenda in Brazil is highly polarised especially also because of the power of the agribusiness sector; this sector has an interest in environmental deregulation because of its impacts on the environment. How do these actors support discussions in WhatsApp and Telegram groups in Brazil to spread anti-sustainability discourses, and what problematic content is spread in such platforms?

Marie’s Netlab has monitored such public groups on …

The final speaker in this session at the AoIR 2025 conference is my QUT colleague Dan Angus, presenting our work on AI chatbots’ responses to conspiracist ideation. Ai chatbots are now widely used by everyday users; this is leading to a range of problematic outcomes, as people are being drawn into deep emotional relationships with such chatbots, for instance. Chatbots are also increasingly manipulated to represent distinct ideological perspectives.

Here are our slides:

What happens, then, when chatbots are asked specifically about conspiracy theories? What guardrails and safety mechanisms, if any, are in place in leading …

It’s that time of the year, and I’ve made my annual pilgrimage to the annual conference of the Association of Internet Researchers (AoIR), the single most important highlight of the academic year. This year we’re in Niterói, Rio de Janeiro, and after the local welcomes we start the conference proper with a keynote by the great Marie Santini from NetLab at the Federal University of Rio de Janeiro, who is also a genuine Niterói local. She begins by revisiting the timeline of Internet studies: we have now reached a moment of great rupture (the theme of this year’s conference) …