Pinterest explains how their engineers deal with web performance. It’s a three parter:

- Part I: about the team structure
- Part II: about systems and practices for performance degradation detection
- UPD: There is a Part III, actually. It's focused on proactive
measures to detect performance
degradations.
Thanks to an attentive subscriber who spotted it!

I found it particularly interesting, how they organize teams and share
responsibility for web performance. It would be very interesting to
hear, how did they get there: was it a top-down instruction or a natural
evolution. Maybe, that should have been the part III, but who knows.

P.S. Pinterest is the best social media out there!