Ad Observer is a browser extension developed by the Online Political Transparency Project of New York University. Created in partnership with the Algorithmic Transparency Institute, this free tool aims to increase transparency in online political advertising.

With Ad Observer, users can contribute data about the ads they are shown while browsing social media platforms. By sharing this information, researchers, journalists, and the public can gain a better understanding of online political advertising and how personal data is used for targeted ads.

This browser extension provides a valuable opportunity for individuals to actively participate in the research and analysis of online political advertising. By sharing their ad experiences, users contribute to a broader understanding of the impact and reach of political ads, ultimately promoting transparency in the digital realm.

Ad Observer is a user-friendly and accessible tool that empowers individuals to play an active role in shedding light on the workings of online political advertising. By providing researchers and journalists with valuable data, this extension helps to ensure that the public is better informed about the ways political campaigns target and engage with voters.