This is a web service that provides secure database backend funtionality for any website. Basically you just nominate your fields and you're away. A special tool will help to make forms which can be pasted into your webpage, and another tool will help with building custom queries. Everything is served & stored remotely. This may exist already but i could not find it-- simonj, Sep 22 2009 Amazon's simpledb http://aws.amazon.com/simpledb/If your needs are minimal, you might get away with the free tier. [Ian Tindale, Sep 23 2009] Amazon Elastic Compute Cloud (Amazon EC2) http://aws.amazon.com/ec2/Proper cloud computing, pay as you go [Ian Tindale, Sep 23 2009] Google Base http://www.google.co.uk/base/Sort of what the poster is talking about [zen_tom, Sep 23 2009] This has been overtaken by cloud computing, in that you can run the apps in the cloud too, but it's generally not free like yours is.-- Ian Tindale, Sep 23 2009 I thought this was pretty much covered with Google Base and a couple of dodgy Microsoft apps whose name escapes me at the moment because I'm trying to forget them.-- UnaBubba, Sep 23 2009 {Google Base isn't really a database backend - it's a way of getting your products shown on Google queries.}-- phoenix, Sep 23 2009 All your base are belong to Google now?-- RayfordSteele, Sep 24 2009 halfbakery