one of the locations where the new data has not been written. Amazon discourages the use of consistent read, unless it is required for correctness. The reason for this recommendation is that the rate at which consistent read operations are serviced is lower than for regular reads. Relationship to DynamoDB There has been some talk of SimpleDB being superseded by DynamoDB (it is no longer being "iterated on", though Amazon does not plan to remove it). DynamoDB appears to be its successor. See also NoSQL Structured storage References External links Amazon SimpleDB official home page Document-oriented databases SimpleDB Cloud databases Database-related software for Linux Distributed data stores de:Amazon Web Services#Amazon SimpleDB