twebdonny - 3:40 pm on Jan 9, 2005 (gmt 0)

It would be bad business practice to penalize a site for using a competitor's ad program. That would leave a large segment of the Internet unindexed by Yahoo,as many sites use Google AdSense, which would lead to bad serps at Yahoo, which eventually leads to loss of revenue for ads on their search engine.

now you are seeing the light my friends

competition, yahoo stifles competition

ps: not all adsense sites compete with Yahoo....