A chat application is to node.js what a blog was to Ruby on Rails or PHP -- it's basically the default example of every framework and library. Low complexity, h

A chat application is to node.js what a blog was to Ruby on Rails or PHP -- it's basically the default example of every framework and library. Low complexity, high throughput. So you'd have no trouble finding good examples and libraries. For a while, Erlang was quite popular in that area, but as some orgs only used it for that and thus didn't get too deep in the tech stack, they were eager to switch to something they imagine they know a bit better.