Holla – Javascript Chat Application

Holla is a group chat application, a bit like Campfire. The interface is totally asynchronous, which is one of the most important aspects of Holla. You can create channels, add messages and upload files – all without blocking any of the UI. Any AJAX requests that need to happen, happen in the background.

Holla uses Node.js for the real-time chat and falls back to Comet and Flash Sockets if WebSockets is not supported.