diff --git a/readme.md b/readme.md
index 37a4c8c..30c45e0 100644
--- a/readme.md
+++ b/readme.md
@@ -100,6 +100,7 @@ Decentralized finance (#defi) is the movement that leverages open source softwar
   - [Market](https://marketprotocol.io) ([source code](https://github.com/MARKETProtocol), [white paper](https://marketprotocol.io/assets/MARKET_Protocol-Whitepaper.pdf)) - Protocol for structuring peer-to-peer agreements that settle in the future based on the price of a reference asset
   - [UMA](https://umaproject.org) ([white paper](https://umaproject.org/UMA-whitepaper.pdf)) - Protocol that allows any two counterparties to design and create their own financial contracts that are secured with economic incentives alone, making them self-enforcing and "universally accessible"
   - [Veil](https://veil.co) ([launch post](https://medium.com/veil-blog/introducing-veil-649036f9d492)) - Peer-to-peer prediction market and derivatives platform built on top of Augur, 0x, and Ethereum
+  - [Guesser](https://guesser.io/) ([launch post](https://medium.com/guesser/insights-into-augur-62ad41f4cf38)) - Hottest short markets over the top of Augur
 
 
 <a name="bundling-protocols" />