The NDC videos are online now!
Web API Security (includes first public demo ever of AuthorizationServer)
Video: https://vimeo.com/68327244
Slides: https://speakerdeck.com/leastprivilege/securing-asp-dot-net-web-api-ndc-oslo-2013
OAuth2 – The good, the bad and the ugly
Video: https://vimeo.com/68331687
Slides: https://speakerdeck.com/leastprivilege/oauth2-the-good-the-bad-and-the-ugly-ndc-oslo-2013
Enjoy!