About each Sample:

NancyAuto - Demonstrates WorldDomination being setup automatically in a NancyFX project
  - Uses Providers
    - Twitter
    - Facebook
    - Google
  - Configured using custom provider config
 
MvcManual
  - Uses Providers
    - Twitter
    - Windows Live
    - Github
    - OpenId
  - Configured using custom provider config
 
MvcAuto
  - Uses Providers
    - Twitter
    - Facebook
    - OpenID
  - Configured using custom provider config