Rack: a Ruby Webserver Interface

@sidarok I always said that the Dapper *micro ORM* is akin to rack for databases

Personifi uses Rack cause we like its elegant design, speed and fast turn around time. With Rack we serve billions of requests per month. It makes our life good! —Armin Roehrl, Lead Engineer of Personifi

Full article: http://rack.rubyforge.org/