There are several ways to earn money through Facebook, including creating a Facebook page focused on a niche to promote affiliate products, selling items through Facebook Marketplace, establishing authority in Facebook groups to promote services, running Facebook ads as a consultant, monetizing live streams through Facebook Stars, working as a brand influencer, publishing content on Facebook Instant Articles and Watch to earn ad revenue, doing affiliate marketing, selling digital products, offering freelance services, and running crowdfunding campaigns. The key is to provide engaging content that builds a following and offers value.