Content becomes a revenue model when maintainers can turn their expertise into paid courses, newsletters, books, guides, or member-only educational material. It works especially well for projects with a strong audience, a teaching angle, or a community that values deep domain knowledge.

This model is more like a business than a funding mechanism. It can create durable income, but it also takes editorial consistency, packaging effort, and ongoing audience development. It usually fits best alongside the broader Earn Revenue area rather than as the only source of project support.

Good references in this category include Substack, Teachable, and Leanpub. Use content when the project naturally produces teachable knowledge; use Support & Services when customers are paying primarily for direct expertise, implementation, or assurances.