Source: http://www.10gen.com/leading-nosql-databaseThe NoSQL database movement came about to address the shortcomings of relational databases and the demands of modern software development, and it's quickly gaining mainstream attention. Although there are a number of databases in this category vying for adoption, industry authorities recognize MongoDB as the leading NoSQL database. More than any other database — NoSQL or otherwise — MongoDB provides the technological capabilities and business benefits that organizations need.
Links:
http://www.10gen.com/products/mongodb
https://twitter.com/MongoDB
http://www.meetup.com/sfhtml5/events/114191412/