For instance, the narrative of the 2-minute ad follows a day in the life of a Twitter user interacting with the service to prepare for a romantic date that night.

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It does not have the instant gratification of a search ad but it does have the life-time value of sales, ROI, amplification and advocacy from the community.

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"You insulted our way of life, " the ad says, displaying assorted images of hunters and churchgoers.

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Paul Roberts, the exhibition's curator, says the painting offers a unique insight into the life of Pompeii's citizens in the 1st century AD.

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But in the focus groups, viewers did not have the option of skipping the ad the way they do in real life.

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The first week hatching StrawberryFrog, my own ad agency, was the worst week of my life.

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He spent the key part of his life as an itinerant teacher in Galilee and was executed around 30 AD by crucifixion, a painful and degrading form of death reserved for criminals.

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