On NETTUTS.com today there's a new tutorial posted about setting up your application to use OAuth and authenticate against Twitter.
Beginning August 16th, Twitter will no longer support the basic authentication protocol for its platform. That means the only way to authenticate users will be through a Twitter application. In this tutorial, I’ll show you how to use Twitter as your one-click authentication system, just as we did with Facebook.
They walk you through all the steps you'll need to make the authentication work:
- Setting up the application (as a Twitter app)
- Registering users
- Reading statuses
- Posting updates