• http://www.alanmitchell.com.au alanmitchell

    It’s fascinating how such a small change can have such a big impact. I remember Google testing the coloured box at the top of the SERP from blue to yellow to pink, to see what effect colour has on CTR. Like you said, for someone of Google’s size, even the smallest change in CTR can have a big impact on profitability.

    Whether or not Google has a moral obligation to provide a clearer distincion between natural and paid links is an interesting discussion. But if Google has to do it, then surely all affiliate, partner and sponsor links on websites should also declare themselves as commercial?