Ben Schwarz: How Google Pagespeed works: Improve Your Score and Search Engine Ranking
In this article, we uncover how PageSpeed calculates its critical speed score.
Peter-Paul Kock: Blink (QuirksBlog)
A great explanation of what Blink is and what it means
Metric Mail
"Every week, you get a PDF report via email that gives you an overview of your website's stats. All you need is a Google Analytics account."