For major news sources: Guess it by correlation. E.g. Google for something that appears on every BBC news page and observe the order google returns the results

For major news sources: Guess it by correlation. E.g. Google for something that appears on every BBC news page and observe the order google returns the results in to infer popularity. Do that for all the countries major news outlets. Run all the sources through OpenCalais to collect features. Present the features.