• http://www.facebook.com/people/Jack-N-Fran-Farrell/100002337622505 Jack N Fran Farrell

    What risk did Google take? That 50 years of mathematical-programming and economic theory of auction-algorithms and markets are wrong? By creating a two-sided exchange between potential-buyers and potential-sellers Google set up a mathematical measure of efficiency (the take of the middleman).

  • http://searchengineland.com/ Danny Sullivan

    The risk was shifting an entirely free service for merchants to be listed in to being all paid. Advertisers could have refused (as did Amazon); the consumer fallout from Google moving to a paid inclusion model it once called evil could have been severe. The reality is most advertisers paid up. Google turned to Amazon affiliates to make up for its loss. Consumers didn’t seem to care about the change, despite Microsoft even running a “Scroogled” campaign.

  • http://www.facebook.com/jeffreycwilliams Jeff Williams

    Did advertisers increase spend or just shift it away from comparison shopping sites that would have garnered those clicks in the past?

  • http://www.facebook.com/treb072410 Jubert Sagun

    Very useful, insightful, thanks!

  • http://twitter.com/YoungbloodJoe Joe Youngblood

    I would like to point out that 4th quarter = Christmas.

  • http://twitter.com/YoungbloodJoe Joe Youngblood

    Consumers don’t care. Google could be all paid and at this point, at least for a while a ton of websites would pay up. Consumers just want the best / cheapest result that matches their query.

  • Pat Grady

    We’re “rounding” down to get to 600%. :-)