Amazon's S3 (Simple Storage Service)
SimpleDB
EC2 (Elastic Compute Cloud) 




NoSQL
non-relational 
data stores
relational databases
fixed table schemas
join operation
scale horizontally
structured storage
eventual consistency
distributed architecture (distributed database)

interface: associative arrays, key-value pairs

Production: Google's BigTable, Amazon's Dynamo
Open Source: HBase, Apache Cassandra, Hyperbase
Uso: Digg, Facebook, eBay, Amazon, Google

RDBMS: PostgreSQL, Oracle, MySQL, DB2, SLQ Server, etc
- no native ACID only by middleware
- elastic

Names: Carlo Strozzi, Eric Evans, 


Document store
. CouchDB
. MongoDB
Graph
. Neo4j
Key/value store on disk
. Memcachedb
. Redis
. SimpleDB
. BigTable
Key/value cache in RAM
. memcached
. Redis
Eventually-consistent key-value store
. Dynamo
. Cassandra
Ordered key-value store
. Memcachedb
Object database
Tabular
. BigTable
. Hbase
Tuple store
