NoSQL Databases

Database	Description
MongoDB	ideal for website data storage, content management and caching applications, and can be configured for replication and high availability
Apache Cassandra	suitable for applications that can’t afford to lose data
Apache CouchDB	can be used to store data and content for websites, and to provide caching
Redis	key-value in-memory data storage (advanced data structures, feature-rich)
Memcached	key-value in-memory data storage (multithreaded architecture)