A minimalist message board written in Go
Topical is a (very) minimalist message board built with Golang.
Language-agnostic real-time messaging server
Centrifugo is a real-time messaging server. It's language-agnostic and can be used in conjunction with application backend written in any programming language.
A Real Time Messaging Server
With beaver you can easily build scalable in-app notifications, realtime graphs, multiplayer games, chat applications, geotracking and more in web applications and mobile apps.