We all know online advertising decelerated in the third quarter, but how bad was the slowdown? To find out, a blogger on TechCrunch added up the online advertising revenues for the four major players, Google, Yahoo!, Microsoft, and AOL that together account for the majority of online advertising.For the purposes of this analysis, the website took the total advertising revenues from both Google and Yahoo!, including their network revenues paid to affiliates, the online revenues reported by Microsoft, and only the advertising portion of AOL’s revenues.
These four serve as good proxy for the overall online advertising market. Below are the absolute revenue numbers, broken down by company:.