To: GVTucker who wrote (7466 ) 2/13/2006 11:32:04 AM From: Dave Read Replies (1) | Respond to of 15857 GVTucker,Because in the long run, price = marginal cost. I agree with you completely (in theory)and while I am hesitant to say, "this time it's different", I believe that what is implicit in your comment is "barriers to entry". While in this business barriers to entry are very low, I would argue that barriers to success are very high. With Google and other sites such as Yahoo, MSN, etc., there is a network effect. The more traffic that is driven to Google, the more valuable and costly advertising is on Google vis-a-vis to other sites. One example that comes to mind is Internet Auction sites such as Ebay, Overstock, and Yahoo!. The latter attempted to compete with Ebay in terms of price, but Yahoo! and Overstock never achieved the scale that Ebay possesses. Of course, implicit in my assumption is that people use Google or other search sites to find products to buy and, as such, these users will click on the "paid" advertising. While there is evidence pointing to the fact that the ROI on internet advertising has declined given (what I believe to be) the run up in pricing, that does not mean that advertisers will use other sites to advertise or that they will pay less for internet advertising. What I believe promotes the growth of "paid search" is whether or not "search engines" are used to buy products and their effectiveness in driving traffic to another site for a product or services eventual purchase. While there will be a land grab in other countries and that outcome is uncertain, I believe that you said once something like this: "Uncertainty creates opportunity" Best regards, Dave