Social media is a biggest successful buzzword used in the recent time. Its success opened various opportunities for the developers. Developing any application requires storage of large data into databases. Many databases are available for the developers, Choosing the right one make development easier. MongoDB is a cross platform document oriented, schema-less database eschewed the traditional table based relational database structure in favor of JSON like documents. This article discusses various pros and cons encountered with the use of the MongoDB so that developers would be helped while choosing it wisely.