Facebook to survey users to measure trust in publications, data will affect News Feed rankings; news will make up 4% of News Feed posts, down from 5% (Deepa Seetharaman/Wall Street Journal)

Deepa Seetharaman / Wall Street Journal:
Facebook to survey users to measure trust in publications, data will affect News Feed rankings; news will make up 4% of News Feed posts, down from 5%  —  Tech giant will rely on user surveys of trustworthiness to try to preserve objectivity  —  Facebook Inc. FB .33% plans to start ranking news sources …

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