I'd be very interested to see the difference in average page size between online publishing/new media and other types of sites. I think so much of this crisis is driven by the economics of that business model. Theres so much incentive to track & analyse users with various scripts, a desire to have a pretty looking site with lots of images (the biggest factor in page bloat) and comparatively little in-house technical resources or spare cash to devote to something as relatively exotic as web performance.