The Platform Governance Archive (PGA) is a data repository and platform that collects and curates policies of major social media platforms in a long-term perspective. When have YouTube and Instagram introduced hate speech policies? How have misinformation policies changed over time? With the help of the archive, researchers, journalists and the public can answer their questions on how platforms order and govern communication and interaction in our societies, and hold those powerful new institutions accountable.
Data
Explore and download the PGA datasets.
Explore
Explore the historical dataset in an interactive visualisation with timelines of changes.
Research
Explore existing research on platform policies based on PGA data and beyond.
The PGA is hosted by Lab Platform Governance, Media, and Technology at the Centre for Media, Communication and Information Research (ZeMKI), University of Bremen and led by Christian Katzenbach. We collaborate with the Alexander von Humboldt Institute for Internet and Society (HIIG), the University of Groningen, and Open Terms Archive for the curation and collection of the policies.
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TikTok Revises Community Guidelines, Removing “Trustworthy” From Platform Goals and Expanding Policies on AI-Generated Endorsement and Creators’ Responsibilities
TikTok’s Community Guidelines were updated on 13.09.2025. The update enhances and rewrites most of the previous guidelines to make them easier to understand. Some significant additions include: 1. “Trustworthy” has been removed from the description of Content Moderation section. Before: Keeping our platform safe, trustworthy, and vibrant requires balancing creative expression and preventing harm. (17)…
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Spotify Uses Personal Data for Training Algorithmic and Machine Learning Models
In the privacy policy update on 13.05.2025 Spotify claims that they use users’ personal data for training of algorithmic and machine learning models to build AI features. Before: We use personal data to develop and improve our personalized recommendation algorithms (line 221) After: To evaluate and develop new features, technologies, and improvements to the Spotify…
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Bluesky Expands Community Guidelines with Detailed Rules on Child Sexual Abuse, AI Deepfakes, and Allowed Contexts
On August 14, 2025, Bluesky published an overhaul of its Community Guidelines, introducing more granular categories and detailed examples of prohibited content. The changes include (among others) additional explicit bans on: AI-generated or animated CSAM (child sexual abuse material): (Do not) Share any content that depicts, simulates, or is AI-generated CSAM (child sexual abuse material)—this…