Answer:
Social media represents the largest available market for any business, simply because of the sheer amount of people that are connected to these platforms.
Businesses can create pages on social media to reach their potential customers, or even buy ad space in the platforms, in order to obtain more effective results.
Potential businesses are just about anything, from the sale of perishable goods like fresh produce, to durable goods like cars or houses, to the sale of professional services like lawyer services or accounting services.