Ads aren't their only revenue stream - they also charge for better access to real-time (and archival) data - for example via Gnip[1], which they purchased in 20

Ads aren't their only revenue stream - they also charge for better access to real-time (and archival) data - for example via Gnip[1], which they purchased in 2014. [0] https://gnip.com/ https://gnip.com/