Podcasts should be the gold standard for online advertising. They're perfect for everyone involved: there's no creepy tracking involved, and the ads are appealing because podcast producers tend to know and respect their audience. I never skip podcast ads because they're often entertaining in and of themselves (e.g., Reply All).

I like this sort of "personalization" podcasts do in their ads: with human judgment where the content creators exercise editorial control, not some black box chum box any rando can dump ads into.