What is affordable marketing?

Affordable marketing it’s process where you show ads to potential people without spending to much of your money.. Or even without spending money at all.
Let me give you few example on how to promote your product or service without spending money:
The most simple idea and available to everyone is: Facebook Groups
Go to Facebook use their search bar to find groups:

As you can see there are a lot… and also Facebook check your interests and provide you with new groups what meet your interests.

Here is also great example on how to use Facebook marketplace to promote your affiliate links: