The only live paste bin that is open source
An HTTP Proxy written in Node.js that supports WebSockets
Etherpad lite is a really-real time collaborative editor spawned from the Hell fire of Etherpad.
Lychee is a easy to use and great looking photo-management-system you can run on your server, to manage and share photos.
"Natural" is a general natural language facility for node.js. Tokenizing, stemming, classification, phonetics, tf-idf, WordNet, string similarity, and some inflections are currently supported.
Give your JS App some Backbone with Models, Views, Collections, and Events http://backbonejs.org
noty is a jQuery plugin that makes it easy to create alert - success - error - warning - information - confirmation messages as an alternative the standard alert dialog.