One of the things I love about the Node modules is that there is a managed location called the Node Package Registry where packages are registered. The registry allows you to publish your own packages in a location where others can use them as well as download packages that others have created.
The Node Package Registry is located at http://npmjs.org. From this location, you can view the newest and most popular modules as well as search for specific packages, as shown in Figure 3.1.