The documents, which include emails, webchats, presentations, spreadsheets and meeting summaries, show how Zuckerberg, along with his board and management team, found ways to tap Facebook’s trove of user data — including information about friends, relationships and photos — as leverage over companies it partnered with.
In some cases, Facebook would reward favored companies by giving them access to the data of its users. In other cases, it would deny user-data access to rival companies or apps.
For example, Facebook gave Amazon extended access to user data because it was spending money on Facebook advertising and partnering with the social network on the launch of its Fire smartphone. In another case, Facebook discussed cutting off access to user data for a messaging app that had grown too popular and was viewed as a competitor, according to the documents.