Surprised to learn that the majority of Amazon's income comes from AWS! https://www.lightreading.com/enterprise-cloud/infrastructure-and-platform/aws-drives-more-than-half-of-amazons-operating-income/d/d-id/749196
miniblog.
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Apparently over half of the income for the Python Software Foundation comes from PyCon US!
https://www.python.org/psf/sponsorship/
"the satisfaction that I get out of building Envoy and working with the larger community is primarily driven by a desire to have huge industry impact and solve deep computer science problems. It’s not driven by maximizing my monetary income" https://twitter.com/mattklein123/status/875921591489576960
Streaming income for record labels has reached a point that total revenue is growing!