diff --git a/NODES_on_Ethereum/RELAYS.md b/NODES_on_Ethereum/RELAYS.md
index 17d19f3..c127ed6 100644
--- a/NODES_on_Ethereum/RELAYS.md
+++ b/NODES_on_Ethereum/RELAYS.md
@@ -5,6 +5,8 @@
### tl; dr
* relays are a bundle propagation service that receives bundles from searchers, simulate each txs, and forwards them to block producers.
+* validators can use relays to outsource their block production to entities specialized in extracting extra revenue.
+
@@ -15,6 +17,7 @@
* [bloXroute MEV relay](https://bloxroute.max-profit.blxrbdn.com/)
* [eden](https://relay.edennetwork.io/info)
* [ethsaker relay list ](https://github.com/remyroy/ethstaker/blob/main/MEV-relay-list.md)
+* [beaconcha.in relay list and stats](https://beaconcha.in/relays)
@@ -33,6 +36,7 @@
* [fb relay api](https://flashbots.notion.site/Relay-API-Spec-5fb0819366954962bc02e81cb33840f5)
+
##### on building a relay
* [mev-boost relay](https://github.com/flashbots/mev-boost-relay)