We're using it for our multiplayer platform (http://flockengine.com http://flockengine.com) to store user accounts and attributes. Advantages: Easy to use and

We're using it for our multiplayer platform (http://flockengine.com http://flockengine.com) to store user accounts and attributes. Advantages: Easy to use and no need to maintain a custom database infrastructure, high availability, no SQL injections, great Python library (boto) Downsides: Slow requests, not exactly cheap, lots of limits on entries(1), need to carefully handle numerical data for sorting(2), horrible PHP library [1] http://docs.amazonwebservices.com/AmazonSimpleDB/latest/DeveloperGuide/index.html?SDBLimits.html http://docs.amazonwebservices.com/AmazonSimpleDB/latest/Deve... [2] http://docs.amazonwebservices.com/AmazonSimpleDB/latest/DeveloperGuide/index.html?SDBLimits.html http://docs.amazonwebservices.com/AmazonSimpleDB/latest/Deve...