Ruby Gems OSS
If you are a rubyist and a maintainer of gems that still use hpricot, please consider using alternatives.
Read the the closure message added on May 3, 2012 by Evan Phoenix.
Ruby Sinatra Gems
The godfather of Sinatra. Those who like Rails will probably want to start with Padrino rather than just bare-bones Sinatra DSL. Check out the blog tutorial.