diberry - 4:13 pm on Apr 17, 2013 (gmt 0)
Pagespeed helped us a lot, not just the rules but where it led us.
Where it led you? May I ask what you mean there? :)
This is a really interesting insight, because I've always felt optimizing for speed and all that was important, long before Google said it counted at all. A lot of people still don't think it counts for much. But I know if it takes too long to load a page, I back out - why wouldn't other visitors?