John Battelle has produced his list of 14(?) predictions for 2007. A particularly interesting one is number 9:

Speaking of the content business, it will face a major test as two forces converge to undermine the pageview model: Ajax, on the one hand, and ad blockers on the other. Both will be addressed with alarm and alacrity by industry efforts. By the end of the year, new metrics will emerge to help publishers and marketers understand audience engagement.

There will be plenty more predictions to come, but Battelle’s list is quite thought-provoking and eclectic.