I could only find older (~2yr) anecdotal evidence. I could not find anything I would quote without a disclaimer. :) (Ordered by higest CTR) #1: Bing, Yahoo, G

I could only find older (~2yr) anecdotal evidence. I could not find anything I would quote without a disclaimer. :) (Ordered by higest CTR) #1: Bing, Yahoo, Google [1] #2: Bing, Google, Yahoo [2] [1] http://www.thepicky.com/internet/chitika-ctr-bing-vs-google-vs-yahoo/ http://www.thepicky.com/internet/chitika-ctr-bing-vs-google-... [2] http://i.marketingprofs.com/assets/images/daily-data-point/search-ad-ctr-webvisibile-Q3-2010.jpg http://i.marketingprofs.com/assets/images/daily-data-point/s...