3. VanityExperiment Driven Development for Ruby
4. IroniumJob queues and scheduled jobs for Node.js, Beanstalkd and/or Iron.io.
6. ZombieInsanely fast, full-stack, headless browser testing using node.js
7. Node ReplayWhen API testing slows you down: record and replay HTTP responses like a boss
8. UuidGenerates universally unique identifiers (UUIDs) for use in distributed applications.