Good point. Let me explain what I base that thinking on. I met with the publisher of a tech news site about 5 months ago to ask for advice on building an onli

Good point. Let me explain what I base that thinking on. I met with the publisher of a tech news site about 5 months ago to ask for advice on building an online only news source. According to quantcast, his site's U.S. audience is about 2/3 that of Techcrunch, so while not the biggest site around, it's pretty big. Each of their posts gets 30-40 comments, similar to Techcrunch's discussion rate. Anyway I asked this guy some questions about where he gets traffic. Google News. I asked where else. Google News and google search. He told me fully 70% of their visitors came from Google search or Google news. Now, these might not be the people commenting on the site every day. But they're the people accounting for 70% of his revenue. So that's what my calculation is based on. His site could be an outlier, but I don't really see why that'd be. Google reigns supreme in the publishing world.