What is audience network in facebook ads?

The Audience Network is a bunch of other mobile apps and websites where Facebook can show your ads. So your ad isn't just on Facebook or Instagram, yeah? It might pop up in a game someone's playing or on a news site. I reckon it's a good way to get your ad in front of heaps more people. You just pick it as a placement when you're setting up your ad campaign. It's pretty simple, mate.