Padrino The Godfather of Sinatra 

Padrino is a little cute framework building on top of the already proven Sinatra. Although the name sounds innocent it is actually translated as The Godfather, and I guess it is the Godfather of Sinatra (couldn’t avoid the pun). Padrino brings further the ideas behind Sinatra. Keeping the simplicity with which Sinatra is famous of, but bringing the power of helpers and generators.

Padrino is quickly gaining speed and building a community around itself. The creators Nathan Esquenazi, DAddYE and Arthur Chiu are working hard answer any requests for improvements or issues with the framework. Nathan is especially responsive and very active at StackOverflow and Padrino’s IRC channel #padrino @ irc.freenode.net

I am very curious about Padrino and will definitely recommend you to spend some time playing with as it has a great potential. A good place to start is to take a peek at the User Guide. Then watch the Screencast and download the Sample Blog application