The Node.js MongoDB driver was started in 2009 and has grown to become one of the most popular database drivers for the Node.js Platform. MongoDB is a document database that allows the storage of documents in json format. It’s main benefits come from it’s ability to store unstructured data while maintaining traditional databases ability to query and index the document efficiently. MongoDb also provides a whole scaling up path. A whole ecosystem has sprung out on top of the driver including ODM mappers such as Mongoose and whole frameworks such as Meteor (a fantastic real time framework).