We have many years of experience in building effective applications using MongoDB and other NoSQL tools.
MongoDB is an open source document-oriented database system developed and supported by 10gen. It is part of the NoSQL family of database systems. Instead of storing data in tables as is done in a "classical" relational database, MongoDB stores structured data as JSON-like documents with dynamic schemas (MongoDB calls the format BSON), making the integration of data in certain types of applications easier and faster.
MongoDB is designed with accelerating fast performance and infinite scale in mind. It features a document-oriented data model, dynamic schema, full index support, ultra-fast in-place updates, rich dynamic queries, built-in sharing and auto-failover, and supports GridFS and MapReduce.
MongoDB is a great fit for projects with very large volumes of data and/or significant scale-out requirements that still require extremely high performance, where data is too complex and heterogeneous to model in a relational schema, or involving real-time analytics.
MongoDB is well suited for the following cases: