LIST OF NOsql DATABASES
http://nosql-database.org/
关系数据库还是Nosql数据库
http://www.infoq.com/cn/news/2011/01/relation-db-nosql-db
10个出色的Nosql数据库
http://www.csdn.net/article/2012-10-12/2810660-Nosql-MongoDB-HBase
