{
blog: ["rubyflow.com", "medium.com", "rubylearning.com",
"rubyinside.com", "yehudakatz.com", "sitepoint.com/ruby",
"afreshcup.com", "rubyguides.com", "justinweiss.com",
"sandimetz.com", "guides.railsgirls.com"],
git: ["github.com", "gitlab.com"],
docs: ["ruby-doc.org", "devdocs.io/ruby", "rubydoc.info",
"guides.rubyonrails.org"],
social: ["stackoverflow.com/questions/tagged/ruby",
"ruby-forum.com", "reddit.com/r/ruby", "reddit.com/r/rails"],
utility: ["ruby.libhunt.com"],
rails: ["opensourcerails.com", "guides.rubyonrails.org",
"reddit.com/r/rails",
"stackoverflow.com/questions/tagged/ruby-on-rails"],
beginner: ["eloquentruby.com",
"pragprog.com/book/ruby4/programming-ruby-1-9-2-0",
"ruby.learncodethehardway.org/book",
"http://mislav.uniqpath.com/poignant-guide/",
"https://www.manning.com/books/rails-4-in-action",
"railstutorial.org/book"],
advanced: ["patshaughnessy.net", "confidentruby.com",
"pragprog.com/book/ager/exceptional-ruby", "rubyfu.net"]
}