More obvious SE NEXT buttons providing second chance?

Any educated opinion or stats?

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Comparing MSN and G it appears that G users might feel a lot more invited in giving second result page listings a chance whereas MSN users might stick to the first page more and maybe do what...?

Does anyone have an educated opinion or proven point if SE's with a less obvious NEXT feature, button, link or gooooo...whatever have less second page hits?

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Any opinion?