[sararschreiber]

this amused me, because I remembered this: http://www.slideshare.net/danmckinley/design-for-continuous-... Slide 42 onwards talks about etsy a/b testing "improvements" in speed and the effect on sales: "Meh" is the conclusion.

[ohitsdom]

This presentation from Etsy's Lara Swanson is pretty strongly in the "performance matters" camp: http://laraswanson.com/design/