Google now allows Gmail and Drive data to target ads

Google updated its privacy policy so content from Gmail, Drive and Photos can influence personalized ads when those apps are connected to services like Personal Intelligence. Users can disconnect the apps in their Google Account settings.

• By default, Gmail, Drive and Photos content is not used for ad targeting
• The exception applies when apps are linked to Personal Intelligence
• Google says it does not share personally identifiable data with advertisers
• Apps can be disconnected under Data & Privacy in Google Account settings