diff --git a/README.md b/README.md
index 52d7d96..591f120 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,8 @@
 
 Everything what is available for our activities in stores here
 
+    Documentation
+    Communities
     Tools
     Material
     Locations
@@ -9,6 +11,16 @@ Everything what is available for our activities in stores here
 
 ## General
 
+### Documentation
+
+https://www.appropedia.org/Welcome_to_Appropedia
+
+### Communities
+
+https://openhardware.science/#
+https://www.oshwa.org/
+
+
 ### Digital/Data
 
 Data are helping us to get in touch with each other. It can be visualized what we have and what we want