Experts Share Their Advice and Mistakes (Brian Jackson - Jan, 2016)
Measuring Page Load Speed with Navigation Timing (Sam Dutton - Oct, 2013)
Evaluating network performance (Chrome Developes)
Speed Index (Web Page Test)
domInteractive: is it? really? (Steve Souders - Aug, 2015)
User Timing and Custom Metrics (Steve Souders - Nov, 2015)