Discovery Service:
https://developers.google.com/discovery/
https://developers.google.com/discovery/v1/reference/

The "type" key:
http://tools.ietf.org/html/draft-zyp-json-schema-03#section-5.1

The "format" key:
http://tools.ietf.org/html/draft-zyp-json-schema-03#section-5.23
https://developers.google.com/discovery/v1/type-format

Google JSON format docs:
http://google-styleguide.googlecode.com/svn/trunk/jsoncstyleguide.xml
