Such an experiment is somewhat ad hoc but should at least provide a proof-of-principle, according to Jim Tartaglia , global head of HIV research at Aventis.

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The responsibility push came at the same time that Liberty decided to boost its somewhat skimpy ad budget.

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The tech press was somewhat dubious about these ad products when they launched for a few reasons, starting with the fleeting attention they would get from Twitter uses, who tend to check in and out of the site fairly quickly, to fears that they would be too intrusive.

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The numbers were indeed somewhat grim: Total ad revenues for the company were down 8.9% from the same period in 2011, with both print and digital advertising falling.

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Kantar Media Intelligence has just published its latest report on U.S. ad spending trends, and the news is both positive and somewhat disconcerting.

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The addressable ad campaign went live on two platforms at once, which is somewhat of a coup.

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