I liked article very much 
I have question: Can we run Go program from Elixir?
About clustering you mostly put Go application into container and orchestration service will take of it. Go very well fits into containers ecosystems. You can use with go http://www.grpc.io/
You could add sections:
####Tooling:
https://github.com/uber/go-torch
###usage
- Docker
- https://kubernetes.io/
- https://prometheus.io/
- system tools
Nice projects:
Also worth mention
http://www.infoworld.com/article/3154624/application-development/google-boosts-python-by-turning-it-into-go.html
