Twitter_mongoDB is a project mainly written in RUBY and JAVASCRIPT, it's free.
Estudando o mongoDB
=== Tenha instalado
O mongoDB => http://www.mongodb.org O rails 3 => http://rubyonrails.org/download.
=== Antes de testa
mongoid.yml #MongoDB em localhost bundle install #instalar dependecias rake mongo:write #gravar um trend no MongoDB
=== Testando
rails s