BusinessWeek publishes an article about the secret of Google AdWords, an ads bidding system that generates almost 99% of Google Revenue.

The article details some innovative Google AdWords auction methodology, such as allocating top spots of ads ranking to advertiser whose ads most likely to be clicked or ads with high click-through-rate, and thus bring in more income to Google. Beside, in Google AdWords system, bidders no need to worry about been overbid and cause ‘winner’s curse’, as it’s utilizing a variation to the auction system where highest bidder only pays minimum necessary to win, namely the second-highest bid, plus perhaps a penny.

Also reveal are technical leader of Google AdWords.

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