I would like to know what is the common Revenue Split between the 3 major
entities in the In Game Advertising Industry - the Game Developer,
Game Publisher and the 3rd Party which develops the technology and
interacts with the Advertisers ( i.e. Massive, IGA, ...)

How much does an Advertiser usually pays for a campaign? How much does
the advertiser pays per impression? Which
parameters effect the price? (Title Popularity? Metrics for measuring
campaign effectiveness? ... ).

(Appreciated is any other information about the economics of In-Game Advertising)