CouchDB - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/CouchDB

MongoDB - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/MongoDB

Document-oriented database - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Document-oriented_database

IBM Lotus Notes - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Lotus_Notes

JSON - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/JSON

YAML - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/YAML

BSON - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/BSON

BSON - MongoDB - 10gen Confluence
http://www.mongodb.org/display/DOCS/BSON

FleetDB : Docs : Server CLI
http://fleetdb.org/docs/server.html

NoSQL - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/NoSQL

Cassandra (database) - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Cassandra_(database)

HBase - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/HBase

My Thoughts on NoSQL - Die in a Fire - Eric Florenzano’s Blog
http://www.eflorenzano.com/blog/post/my-thoughts-nosql/

QuestionsAndAnswers - hypergraphdb - HyperGraphDB Questions and Answers - Project Hosting on Google Code
http://code.google.com/p/hypergraphdb/wiki/QuestionsAndAnswers

HyperGraphDB - A Graph Database
http://www.kobrix.com/hgdb.jsp

Dennis Forbes on Software and Technology - Getting Real about NoSQL and the SQL-Isn't-Scalable Lie
http://www.yafla.com/dforbes/Getting_Real_about_NoSQL_and_the_SQL_Isnt_Scalable_Lie/

cloudkick | blog: 4 Months with Cassandra, a love story
https://www.cloudkick.com/blog/2010/mar/02/4_months_with_cassandra/

SQLite - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/SQLite

MySQL - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/MySQL

Tokyo Cabinet: a modern implementation of DBM
http://1978th.net/tokyocabinet/

Tokyo Cabinet
http://1978th.net/tokyocabinet/perldoc/

redis - Project Hosting on Google Code
http://code.google.com/p/redis/

Berkeley DB - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Berkeley_DB

memcached - a distributed memory object caching system
http://memcached.org/

Mnesia - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Mnesia