The B2B Stack

The B2B Stack

The Channel That Was Right All Along

ChatGPT's ad play isn't a threat to programmatic. It might be its biggest moment in a decade.

Mike Harty's avatar
Mike Harty
Mar 31, 2026
∙ Paid

There’s a particular kind of vindication that comes slowly, then all at once.

Display advertising has spent fifteen years being the unloved middle child of the media mix. Measurable enough to be scrutinised, unfashionable enough to be defunded, and technically sophisticated enough that nobody outside adtech really understood why it kept surviving. B2B marketers in particular treated it like a necessary evil, something you did when search inventory ran dry and you needed to justify the impressions line on a media plan.

That era is ending. And the trigger is the last thing anyone expected.

User's avatar

Continue reading this post for free, courtesy of Mike Harty.

Or purchase a paid subscription.
© 2026 Mike Harty · Privacy ∙ Terms ∙ Collection notice
Start your SubstackGet the app
Substack is the home for great culture