Site Interessantes

http://www.adp-gmbh.ch/ora/concepts/sga.html

https://wiki.gnome.org/Home

[ tunning DB]
http://www.batebyte.pr.gov.br/modules/conteudo/conteudo.php?conteudo=1592

[command controller Ruby]
http://www.tutorialspoint.com/ruby-on-rails/rails-controller-methods.htm