On the first episode in 2019 of The MadTech Podcast, ExchangeWire's CEO, Ciaran O'Kane, and head of content, Lindsay Rowntree, are joined by Mathieu Roche, founder and CEO of ID5, to discuss the latest madtech news and trends.

In this week's episode:

- Taboola's play in the news aggregation space, with Taboola News and its publisher-positive approach
- LUMA's latest ad tech report, showing the growing gap between ad tech and martech in the M&A space
- RTL Group's acquisition of Yospace and why it pays to have a business focus on fixing one problem if you're an ad-tech vendor
- The education required in understanding identity, cookie matching, and why so much money is being left on the table