===== UUID and Time =====
  - UUID http://en.wikipedia.org/wiki/Universally_unique_identifier
  - UUID in Ruby https://github.com/assaf/uuid
  - Getting time from UUID in Ruby https://github.com/ryanking/simple_uuid
  - ISO 8601 time format http://en.wikipedia.org/wiki/ISO_8601
  - [[tincan_api/iso8601_in_ruby_1.8.7 | ISO8601 in Ruby 1.8.7]]
  - [[tincan_api/UUID_in_ruby_1.8.7 | UUID in Ruby 1.8.7]]

==== JSON Params in Rails ====
  - http://guides.rubyonrails.org/action_controller_overview.html#json-parameters