Directory monetization is optional and only works when you have real traffic and trust. The fastest models are featured listings, paid upgrades, and affiliate links.
The cleanest model is leads, when you can prove buyer intent. Start with one method, make it simple, and measure.
Do not monetize too early, first make the directory worth visiting.
This is not an SEO chapter. For building the directory itself, see the directories chapter.
But people keep asking:
“Okay, if my directory gets traffic… how do I make money?”
So here’s a clean, practical list.