In the world of the Web, it's common for sites to push and pull data to and from other sites & services. One example is that of sharing friends lists between social networks. All too often, however, websites ask their users to hand over passwords for different services; this is the Password Anti-Pattern.
Using APIs protected by OAuth, an open authorization protocol, we can allow websites to collaborate without falling prey of the Password Anti-Pattern.
The talk features demos and examples built in .NET using OAuth.net: http://lab.madgex.com/oauth-net/
NB: Download the PowerPoint for full notes on the slides