Szpil – CRM using Node and TokyoCabinet. Shared client/server database and model code, user interface decoupled from the network, API retrieval and authorization performed at the meta-data layer using set union and intersection on indexes to avoid JSON deserialization/serialization overhead.
vows.js – “Asynchronous behaviour driven development for Node.”
jimi — A framework for writing modular web applications in node.js (tutorial)