Rating System
OverviewOpenGroundNews mirrors the Ground News-style media bias spectrum and shows you how story coverage changes across the political landscape. Ratings are designed to be auditable: we store per-source metadata and compute distributions from tracked source cards.
Bias spectrum7-category rating
Story coverageLeft / Center / Right
FactualityVery high .. very low
OwnershipPublisher entity
Sources without reliable metadata are labeled unknown. We avoid guessing bias from domain names.
Bias Categories
Far Left
Examples: unavailable in current dataset.
Left
Examples: unavailable in current dataset.
Lean Left
Examples: unavailable in current dataset.
Center
Examples: unavailable in current dataset.
Lean Right
Examples: unavailable in current dataset.
Right
Examples: unavailable in current dataset.
Far Right
Examples: unavailable in current dataset.
How Ratings Are Assigned
Bias ratings, factuality ratings, and ownership labels are sourced from the Ground News metadata layer when available. When a signal is missing or ambiguous, we keep it as unknown rather than guessing.
- Bias spectrum: Far Left .. Far Right (7 categories)
- Story bias bars: aggregated Left/Center/Right distribution of tracked source cards
- Blindspot: flagged when coverage is heavily skewed to one side