diff --git a/README.md b/README.md
index 8e46e42..5f8e923 100644
--- a/README.md
+++ b/README.md
@@ -94,6 +94,9 @@ You should follow these high quality ecosystem agents to keep up to date with wh
 - https://twitter.com/ParaNodes
 - https://twitter.com/GldnCalf
 - https://twitter.com/BillLaboon
+- [https://twitter.com/0xgoku_](https://twitter.com/0xgoku_)
+- https://twitter.com/saxemberg
+- https://twitter.com/gbaciX
 
 ## Users
 
diff --git a/playbook.md b/playbook.md
index 2651d64..603ad9f 100644
--- a/playbook.md
+++ b/playbook.md
@@ -52,7 +52,8 @@ Simple, accurate answers to common questions about Polkadot, backed by extensive
 
 [^4]: A blog post explaining the term "blockspace": https://www.rob.tech/blog/polkadot-blockspace-over-blockchains/
 
-[^5]:
+[^5]: Polkadot's cynical rollup protocol is called ELVES.
+	- ELVES stands for ”endorsing light validity evaluator system”.
 	- The ELVES paper, formally describing Polkadot's cynical rollup: https://eprint.iacr.org/2024/961
 	- A tweet summary of the ELVES paper: https://x.com/rphmeier/status/1807884271157187007