diff --git a/29.md b/29.md
index 6fb1c7d2..09911b0a 100644
--- a/29.md
+++ b/29.md
@@ -56,6 +56,8 @@ naddr1...?invite=<code>
 
 Clients should use this code in the `code` tag of the `kind:9021` join request. Since the bech32 charset doesn't include `?`, everything before the `?` is still a valid identifier on its own, so clients that don't understand the suffix can just ignore it.
 
+Groups can also be referred to by their [NIP-AD](AD.md) addresses, like `groups.com/quiche`, which are independent from the relay where the group is hosted, serving as something like a NIP-05 for group names.
+
 ## The `h` tag
 
 Events sent by users to groups (chat messages, text notes, moderation events etc) MUST have an `h` tag with the value set to the group _id_.