I first heard of Sinatra a couple of years ago and have been in love with it ever since. For those who haven’t heard of it, Sinatra is a DSL that is used to create web applications. It is written in Ruby and was originally designed by Blake Mizerany, but there’s now a core team who maintain and develop the code. In case you were wondering, it is named after Frank Sinatra, apparently for having so much class he deserves a web-framework named after him.
RubySource: 7 Things I Love About Sinatra