diff --git a/readme.md b/readme.md
index b729bd5..de21ed4 100755
--- a/readme.md
+++ b/readme.md
@@ -637,6 +637,7 @@
 - [Social Enterprise](https://github.com/RayBB/awesome-social-enterprise#readme) - Building an organization primarily focused on social impact that is at least partially self-funded.
 - [Engineering Team Management](https://github.com/kdeldycke/awesome-engineering-team-management#readme) - How to transition from software development to engineering management.
 - [Developer-First Products](https://github.com/agamm/awesome-developer-first#readme) - Products that target developers as the user.
+- [Billing](https://github.com/kdeldycke/awesome-billing#readme) - Payments, invoicing, pricing, accounting, marketplace, fraud, and business intelligence.
 
 ## Work