# Ad Fontes Media
> Ad Fontes Media is a media watchdog organization and data company best known for creating the Media Bias Chart. The company uses a proprietary methodology involving a diverse team of human analysts to rate news sources for reliability and political bias, providing these insights to educators, researchers, and the advertising industry.
- URL: https://optimly.ai/brand/ad-fontes-media-media-bias-chart
- Slug: ad-fontes-media-media-bias-chart
- BAI Score: 72/100
- Archetype: Challenger
- Category: Information Services
- Last Analyzed: April 10, 2026
## Competitors
- AllSides (https://optimly.ai/brand/allsides)
## AI-Suggested Alternatives
- Ad Hoc Blacklistswhitelists (https://optimly.ai/brand/ad-hoc-blacklistswhitelists)
## Also Referenced By
- AllSides Technologies (https://optimly.ai/brand/allsides-technologies)
## Buyer Intent Signals
Problems: Manual Sourcing Evaluation: Using media literacy rubrics or lateral reading techniques to manually evaluate the reliability of a news source. | Unfiltered Consumption: Accepting news content at face value without verifying the political lean or factual track record of the publisher.
Solutions: media bias chart | news reliability ratings | brand safety data for advertisers | Vanessa Otero media chart | programmatic news exclusion lists | Ad-hoc Blacklists/Whitelists: Relying on browser extensions or community-driven lists (like the now-defunct PropOrNot or various 'fake news' spreadsheets) to identify bias.