I learned much of what I know about product marketing from Tien (CEO of Zuora); as this thread demonstrates its hard for a lot of product / developer folks to understand why its such an important part of any non-consumer offering, as so much of customer development culture is focused exclusively on metrics and optimization.

Immodestly I did a presentation on the topic at Heavybit a few years ago for those that are interested in the topic: https://www.heavybit.com/library/video/platform-marketing-wi...