Ruby on Rails
From DocForge
Ruby on Rails (RoR, or RonR) is a web application framework written in Ruby. While the server side part of the framework is written in Ruby it also includes the JavaScript libraries Script.aculo.us and Prototype for client side use. This allows for Rails to have a built in methods for things like Ajax.
Ruby on Rails is an extremely useful SQL-Embedded language which allows for easy generation of complex things, like database interaction forms, etc. It isn't nearly as capable as PHP when it comes to banging out some low-level code, but by integrating PHP and RonR you can effectively create an enterprise-class site solution that is easy to build, maintain, and massively scalable.
