Technology

Twitter Faced SEC Questions on Changing User-Engagement Metrics

Jack Dorsey, Twitter's interim CEO. (David Paul Morris/Bloomberg)
August 25, 2015 04:15 PM

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Agencies
WPP launches rare public attack on Publicis over ad quality, escalating feud

WPP Media has issued a report attacking the quality of desktop and mobile inventory sold via Publicis Groupe's Epsilon SSP, a rarity even among industry rivals.

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TBWA\Chiat\Day plots its next chapter with slew of executive hires
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Opinion
Why Cannes is actually still relevant in 2025
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