AWS Data Exchange for Amazon S3 overview
AWS Data Exchange data subscribers can now easily find, subscribe to, and use third-party files directly from data providers’ Amazon Simple Storage Service (Amazon S3) buckets. Data subscribers access the same copy of the S3 object that the data provider maintains and are therefore always using the most up-to-date data. This results in faster time-to-insights for analysis since data subscribers no longer need to create or manage copies of S3 objects in their own environment. And because subscribers use the same data files as data providers, no additional engineering or operational work is needed by data subscribers to stay up-to-date.