BitBalloon publishes static sites in one step. Instead of dealing with cumbersome local build processes and FTP uploads you just drag a site folder onto a web dropzone or make an API call.
Deployment automatically handles performance optimizations, versioning and CDN integration.
Deployed websites are setup with an API that can handle form submissions, code updates, DNS and domain configuration, and integrate 3rd party services like Google Analytics or Optimizely. There's also have a web UI for all of this.
The BitBalloon API is designed for other companies to use as a scalable web publishing infrastructure for their own products.