John Still
Head of Content
John joined ExchangeWire in March 2022 as Head of Content. John leads ExchangeWire’s editorial team, and his responsibilities include the curation and development of original content across the portfolio of written, visual and audio content for ExchangeWire’s global audience, as well as the ATS event series. Before joining ExchangeWire, John spent five years at The Guardian in roles across editorial, marketing and events. He worked closely with clients in the ad tech space on sponsored content strategies. His career has also taken in spells at Culture Trip, CMC Markets and most recently at a startup creative agency, giving him extensive experience in creating and managing high-quality content across all channels and formats.Articles by John
"Omnichannel planning has become a living system.": Yaron Tomchin, CEO, Mobupps
We meet Yaron Tomchin, CEO at Mobupps, to discuss the omnichannel landscape and how innovation has turned media planning into a far more dynamic process…
From Impressions to Impact: The Year of Outcomes?
Next up in our predictions series, we look at the importance of outcomes, and how they could come to define 2026… Are we moving from vanity metrics to meaningful measurement? 2026 could become the defining moment for outcomes-based thinking. After years [...]
DAIVID Launches New AI-Powered Solution That Enables Marketers To Benchmark Ad Effectiveness Against Competitors in Real Time
LONDON – August 15, 2025 – Advertisers can now instantly compare the effectiveness of their ads with their competitors’ using an AI-powered creative testing tool launched by DAIVID. The global creative data provider has upgraded its Creative Data Feed API to enable [...]
“Infrastructure must build trust—not just scale”: Q&A with Ruben Niet, digitalAudience
ExchangeWire sat down with Ruben Niet, CEO of digitalAudience, to discuss data distribution, digital identity and the power of clean rooms. With privacy regulations tightening globally, how can marketers ensure compliant data onboarding and activation, especially in markets with varying legal [...]
Can UK Commerce Become the Next Advertising Powerhouse?
David Fieldhouse, head of commerce, GroupM, gives his thoughts on how acceleration of retail media is a boost to UK commerce, and can bolster its advertising prowess The well-documented rise of retail media continues to accelerate. All charts tracking the sector’s [...]
"AI-Driven SPO is Reshaping Programmatic Efficiency": Interview with Amir Sharer, CEO of BRAVE
We sat down with Amir Sharer, CEO, BRAVE to discuss the evolving role of AI-driven supply-path optimisation (SPO) in programmatic advertising. He shares insights on how AI enhances bid efficiency, transparency, and ROI, while also addressing challenges like bid duplication, [...]
How to Navigate the Perpetual Revolving Door of Measurement
Chris Andrews, head of advertising technology at Wake the Bear, looks at the framing of measurement and effectiveness and how to avoid getting it wrong… There’s an abundance of irritating cliches that do the rounds in our industry. Not just the flavour [...]
What’s the State of Retail Media in 2025?
In this op-ed, Matt Farrington, president, trading & investment, APAC at Dentsu dives in to the state of retail media, and the challenges and opportunities for the year ahead… Matt Farrington, President, Trading & Investment, APAC, Dentsu As we were expecting, 2024 [...]
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