Traffic equals eyeballs. Eyeballs equal ad dollars. It's not that complicated.
It doesn't matter if it's tweeter, yahoo homepage, or something else. They are talking about the number of bites at the apple Yahoo gets compared to the other for potential ad dollars or penetration. I do not see them declaring Yahoo being used more for search.
Sometimes these threads reinforce businessmen from the hobbyists in pure understanding of how the web works and what matters to other companies. I am amazed that some of the people on GFY managed to make any money at all over the years based on some of the comments made in these sort of threads. It's about potential advertising space and penetration of those ad dollars. "Being cool and free" doesn't keep the lights on at Google either. In the end it comes down to how many people are seeing a potential advertisers ads.
Do I believe it's true? Who knows. Yahoo, much like AOL, own a lot of properties.
