diff --git a/README.md b/README.md
index 4410bf2..3a4a296 100644
--- a/README.md
+++ b/README.md
@@ -134,7 +134,7 @@ The Pigeon protocol may be useful in scenarios such as:
 # Implementations
 
 There is currently one working implementation available
-[here](https://tildegit.org/PigeonProtocolConsortium/pigeon_ruby).
+[here](https://github.com/PigeonProtocolConsortium/pigeon-cli-ruby).
 A long term goal is to support all major platforms and languages.
 
 # How does the Pigeon protocol work?
@@ -202,7 +202,7 @@ signature Y34Q47V0BY370RM5KWGRJRN9HFNGJN0C3DEYVB2V2476CW9RN5HD4XD7KMQ6T4T42N36R5
 ![A hierarchy diagram showing how the message in example 2 points back to example 1, and how example 1 points back to NONE](diagram1.png)
 
 For examples of how messages are handled, see the Ruby-implementation tutorial
-[here](https://tildegit.org/PigeonProtocolConsortium/pigeon_ruby/src/branch/main/ruby_tutorial.md)
+[here](https://github.com/PigeonProtocolConsortium/pigeon-cli-ruby/blob/main/ruby_tutorial.md)
 
 # Constraints and Design Philosophy
 
@@ -345,8 +345,6 @@ ideas from both SQLite and Secure Scuttlebutt.
 
 # Getting involved with the Pigeon protocol development
 
-**PIGEON PROTOCOL DEVELOPERS MAILING LIST:** Send an email with "subscribe" in the subject line to `pigeon_developers@vaporsoft.xyz`.
-
 If you want to be involved with the Pigeon protocol development, there
 are areas we need help in currently:
 
@@ -355,8 +353,8 @@ are areas we need help in currently:
   assist you along the way.
 * We need a BNF grammar for Pigeon messages.
 
-Your feedback really helps. Feel free to email us your opinions and
-ideas at `contact at vaporsoft.xyz`. We will reply to all messages.
+Your feedback really helps. Feel free to raise an issue with your opinions and
+ideas. We will reply to all messages.
 
 # For more information