diff --git a/iap21.md b/iap21.md
index 124383587..0a41bd74a 100644
--- a/iap21.md
+++ b/iap21.md
@@ -66,6 +66,12 @@
         - organized in [[channels]]
           - can be [[open]] and [[closed]]
         - [[open source]]
+- [[inception]] practice
+  - plus challenge for [[wednesday]] 
+  - think about [[units of collaboration]]
+  - who are the [[audiences]]?
+- other interesting references
+  - [[protocols.io]]
 
 
 ## [[2021-01-27]]
@@ -94,4 +100,5 @@
 [push]: push "Push"
 [open]: open "Open"
 [open source]: open-source "Open Source"
+[wednesday]: wednesday "Wednesday"
 [//end]: # "Autogenerated link references"
\ No newline at end of file