On this week’s episode of The MadTech Podcast, ExchangeWire’s Rachel Smith and Lindsay Rowntree are joined by Fern Potter, EVP and global strategy officer at FCB/SIX, to discuss the latest news in ad tech and martech. In this session, they cover: Reach's success as it becomes the UK's 4th highest source of traffic; what could happen to advertising on Instagram if Facebook is forced to give up the platform; and S4 Capital's M&A spree and what it means for data-driven creative.