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My "source" is more direct, however this collaborates: http://thenextweb.com/apps/2012/11/12/opera-users-click-on-the-most-ads-followed-by-safari-mobile-intern

• jkldotio 12y ago
  Even a large difference in CTR wouldn't necessarily say anything about being "more tech savvy". A sub 0.2% difference between Firefox and Chrome is therefore meaningless in this context. That's making the heroic assumption that Chitika Insights data is not biased in some way and can overcome methodological problems (no script, user agent changes, bots clicking ads) even if it was perfectly representative.