I have this link handy when I want to get a very quick and general idea about all the different ones: http://kkovacs.eu/cassandra-vs-mongodb-vs-couchdb-vs-redi

I have this link handy when I want to get a very quick and general idea about all the different ones: http://kkovacs.eu/cassandra-vs-mongodb-vs-couchdb-vs-redis http://kkovacs.eu/cassandra-vs-mongodb-vs-couchdb-vs-redis