NoSQL (Not Only SQL) -  movement established in early 2009, rapidly growing ([[http://en.wikipedia.org/wiki/NoSQL|some general informations about NoSQL]])

How to differentiate between SQL and NoSQL?
[[http://en.wikipedia.org/wiki/ACID|ACID]] vs [[http://queue.acm.org/detail.cfm?id=1394128|BASE]]


Categories (according to [[http://nosql-database.org/|NoSQL]]):
  - Column Families
  - Document Store 
  - Key Value
  - Graph Databases
  - Object Databases  
  - Multimodel Databases (?)
  - Multidimensional Databases (?)
  - Multivalue Databases (?)
  - Other     

Column Families:
 Cassandra
([[http://www.facebook.com/note.php?note_id=24413138919|Cassandra at Facebook]], [[http://www.jeffbullas.com/2011/04/28/50-fascinating-facebook-facts-and-figures/|a bit out of date but good to take a look at]])
; BigTable 
([[http://static.googleusercontent.com/external_content/untrusted_dlcp/research.google.com/pl//archive/bigtable-osdi06.pdf|BigTable at Google]])
; HBase
; Hypertbale