Policy

This weekend, seven years after it first launched in the US, the Meta Ad Library (MAL) stops growing. When it launched in 2018, Meta (then Facebook) said it would store a comprehensive, searchable database of political ads on its services for seven years. Since then, the MAL has been used by academics, journalists, civil society…

We’ve wanted to build realtime maps of where ads are being targeted for a long time. Ideally, we want to combine that with data about how much is being spent in particular places, and being able to show the political competition underway there. In 2024, we had our first go at doing that, where we…