Full featured Promises/A+ implementation with exceptionally good performance
Tiny, fast, and elegant implementation of core jQuery designed specifically for the server
elegant & feature rich browser / node HTTP with a fluent API
the complete solution for node.js command-line programs
get colors in your node.js console
Lodash modular utilities.
Higher-order functions and common patterns for asynchronous code
A deep deletion module for node (like `rm -rf`)
yargs the modern, pirate-themed, successor to optimist.