Breaking news: Merb and Rails working together on the next version of their frameworks Faster, Lighter, More Agile. Merb is an MVC framework that is ORM-agnostic, JavaScript library agnostic, and template language agnostic, preferring plugins that add in support for a particular feature rather than trying to produce a monolithic library with everything in the core. In fact, this is a guiding principle of the project, which has led to third-party support for the ActiveRecord, DataMapper, and Sequel ORMs. In addition, it means that the core code in Merb is kept simple and well organized. This has multiple benefits. It means it’s faster for one thing. It’s also easier to understand, maintain and extend. Merb is already packed with good stuff; flexible routing, gem plugins, the provides API, part and mail controllers etc. To get a better idea check out the features. Or if you’re feeling impatient, just get to it and install Merb!

Create entire apps using JavaScript and Ajax Use the same ubiquitous set of languages you find in the Web browser, on the server to build full apps or presentation tiers faster and more easily.

Prototip allows you to easily create both simple and complex tooltips using the Prototype javascript framework.