Earlier this month, Yahoo! announced the largest revamp of its pay-per-click (PPC) ad platform since it bought the technology from Overture back in 2003. New interfaces, new analytical tools and new targeting capabilities will be rolled out to marketers, apparently during the third quarter of 2006. After that, at a yet-unannounced point in time, will come a whole new algorithm for delivering ads that factors in not just bid price but a
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