Wondering whether a particular online news source is publishing articles that support the Schema.org standard? This custom search engine will only return pages marked as Schema.org "newsArticle". So, if you enter the query:
newyorker.com, you'll get results from that site if any of its online content is a Schema.org newsArticle. But do scan the results to make sure that they're not articles about Schema.org and that they look like actual news articles.
This crude site was created by a hobbyist programmer. No promises, no rights reserved. Please have mercy. Thanks. And thanks to Dan Brickley for suggesting it. - David Weinberger, March 2015.