Seeking Alpha
comScore says that Google and YouTube combined account for nearly 10% of the video-viewing market. Hitwise says that GoogTube accounts for nearly 60%. OK! Which methodology is more reliable?

ComScore's Erin Hunter says that her company's method is more accurate (of course) because comScore surveys a far larger audience pool. Hunter also told me that she believes a big portion of YouTube's video traffic comes from News Corp's (NWS) MySpace. Who has the best video data?