diff --git a/README.md b/README.md
index 8a5d831c..a7ddab5f 100644
--- a/README.md
+++ b/README.md
@@ -102,6 +102,7 @@ Please take a quick gander at the [contribution guidelines](https://github.com/a
   - [Distributed Systems](#distributed-systems)
   - [Dynamic DNS](#dynamic-dns)
   - [Email](#email)
+  - [Instant Messaging](#instant-messaging)
   - [Embeddable Scripting Languages](#embeddable-scripting-languages)
   - [Error Handling](#error-handling)
   - [File Handling](#file-handling)
@@ -984,6 +985,12 @@ _Libraries and tools that implement email creation and sending._
 
 **[⬆ back to top](#contents)**
 
+## Instant Messaging
+
+_Libraries and tools that implement instant messaging._
+
+- [WukongIM](https://github.com/WuKongIM/WuKongIM) - a high-performance universal communication service
+
 ## Embeddable Scripting Languages
 
 _Embedding other languages inside your go code._