MongoDB is a scalable, high-performance, open source, document-oriented NoSQL database. It features document-oriented, JSON-based document storage and dynamic schemas providing simplicity, power and flexibility, combined with full indexes similar to what a traditional RDBMS user would expect. MongoDB also provides solid replication & high availability features as well as an auto-sharding system for transparent horizontal scalability. This talk introduces MongoDB for developers who aren't familiar with it. I will cover MongoDB's CRUD features, aggregation, geospatial indexes, GridFS as well as the replication and sharding functionality.