Local image ad banners?

[neil (Neil Lalonde)]

You could use Google Ad Manager (formerly DFP) or theme components to serve your own content instead of using an ad network.

https://meta.discourse.org/t/using-dfp-to-show-house-ads/90891

Beginner's guide to using Discourse Themes

This is a crash course in Discourse theme basics. The target audience is everyone who is not familiar with Discourse themes. If you’ve already used Discourse theme / theme components, this guide is probably not something you need to read. What are themes and theme components? A theme or theme component is a set of files packaged together designed to either modify Discourse visually or to add new features. Let’s start with themes. Themes In general, themes are not supposed to be compatible wi…