Cross promotion works with a variety of mediums. For example, a lot of snippets from Creative Marketing Brief are pulled from host Jeff Large’s podcast, The Jeff Large Podcast. This cross promotion, in addition to Jeff being featured on several other podcasts, has led to a visible spike in listenership.
From March to April numbers doubled. Fast forward another month and they’ve doubled again. All due to the simple tactic of cross promotion.
In whatever medium you work in, look for ways that you can cross promote.