Windows Azure Table Storage supports schema-less data. You can give it any sort of entity and store them in something similar to a table but without schema rest

Windows Azure Table Storage supports schema-less data. You can give it any sort of entity and store them in something similar to a table but without schema restrictions. I use it for one of my projects and love it. http://www.microsoft.com/azure http://www.microsoft.com/azure edit - Thought I would also point out you can whatever language you like to use it. You use a REST API to perform all your queries.