







Collaborative and social computing theory, concepts and paradigms
Governing Together: Toward Infrastructure for Community-Run Social Media
Decentralizing the governance of social computing systems to communities promises to empower them to make independent decisions, with nuance and in accordance with their values. Yet, communities do not govern in isolation. Many problems communities face are common, or move across their boundaries. We therefore propose designing for "inter-community governance:" mechanisms that support relationships and interactions between communities to coordinate on governance issues. Drawing from workshops with 24 individuals on decentralized, community-run social media, we present six challenges in designing for inter-community governance surfaced through ideas proposed in workshops. Together, these ideas come together as an ecosystem of resources, infrastructures, and tools that highlight three key principles for designing for inter-community governance: modularity, forkability, and polycentricity. We end with a discussion of how the ideas proposed in workshops might be implemented in future work aiming to support community governance in social computing systems broadly.

Social media algorithms can be redesigned to bridge divides — here’s how
"It falls to both the tech companies that built these systems and an engaged public to create technologies designed for social cohesion."

Common Fabric
A social computing lab. We are building a medium for software that revolves around people, not apps.
Bluesky and the AT Protocol: Usable Decentralized Social Media
Bluesky is a new social network built upon the AT Protocol, a decentralized foundation for public social media. It was launched in private beta in February 2023, and has grown to over 10 million registered users by October 2024. In this paper we introduce the architecture of Bluesky and the AT Protocol, and explain how the technical design of Bluesky is informed by our goals: to enable decentralization by having multiple interoperable providers for every part of the system; to make it easy for users to switch providers; to give users agency over the content they see; and to provide a simple user experience that does not burden users with complexity arising from the system's decentralized nature. The system's openness allows anybody to contribute to content moderation and community management, and we invite the research community to use Bluesky as a dataset and testing ground for new approaches in social media moderation.

Seeing the Politics of Decentralized Social Media Protocols
Calls to decentralize feed-based social media have been driven by concerns about the concentrated power of centralized platforms and their societal impact. In response, numerous decentralized social media protocols have emerged, each interpreting “decentralization” in a different way. We analyze four such protocols (ActivityPub, AT Protocol, Nostr, and Farcaster) drawing on protocol documentation, media coverage, direct usage, and semi-structured interviews with protocol developers and experts to situate each protocol within its socio-technical goals. To support this analysis, we develop a grounded lexicon that facilitates the description and comparison of analogous components across each protocol. With it, we show how each protocol distributes control over key components differently, shaping who holds power over critical aspects such as user identity, curation, and infrastructural ownership. By examining protocols as socio-technical artifacts, we show how they prioritize different values and make distinct trade-offs, providing CSCW researchers with a lens to more effectively evaluate and design future decentralized social media systems.

FediForum | Growing the Open Social Web:<br>An Online Un-Workshop
Since the Twitter takeover by Elon Musk over three years ago, the Open Social Web has been adopted by an enthusiastic community. People world-wide are building and using open social platforms and open social protocols to better interact with others online.

FR#157 – Social Software Distribution
Open social protocols are expanding beyond social media into the infrastructure developers use to build, distribute, and discover software. Three recent launches show what that looks like in practice.

“No One’s Coming to Save Us. Why Communities Must Build Their Own Internet” -Rudy Fraser, Blacksky
Toward People’s Community Control of Technology: Race, Access, and Education
This field review explores how the benefits of access to computing for racialized and minoritized communities has become an accepted fact in policy and research, despite decades of evidence that technical fixes do not solve the kinds of complex social problems that disproportionately affect these communities.

From Social Network to Sense Making
Build Community Online with Decentralized Tools | Blacksky
Decentralized tools to build community online. The intercommunal net where communities govern, pool funds and stay safe on their own terms.

Build Community Online with Decentralized Tools | Blacksky
Decentralized tools to build community online. The intercommunal net where communities govern, pool funds and stay safe on their own terms.

Manoel Horta Ribeiro (@manoelhortaribeiro.bsky.social)
Assistant Professor @ Princeton Previously: EPFL 🇨🇭, UFMG 🇧🇷 Interests: Computational Social Science, Platforms, GenAI, Moderation
1/ It’s time to share more about what we’ve been working on: @commonfabric.com is a social computing lab building a medium for software that revolves around people, not apps. commonfabric.com
this week's news is about how @tangled.org @npmx.dev and @alt.store are using open social networking protocols to build, distribute, and discover software, and how the most important part is not the code but the community building part connectedplaces.online/reports/fr157-social-software…
FR#157 – Social Software Distribution
connectedplaces.onlineAnnouncing co/core: a social computing experiment from the Graze team
co/core — an AI cooperative
console.cocore.dev