Originally posted on Gigaom:
Remember when there were just two or three cloud computing platforms to choose from, and just about as many cloud databases? Well, as clouds have proliferated, so have the database services built on top of them. In fact, it’s getting hard to keep up with what’s actually available.
Here’s a primer highlighting the available services (note, we’re talking managed database services, not database instances that users still need to manage and administer) and where they’re running. It’s intended to be thorough, but that can be easier said than done, so please note any omissions in the comments.