"Today, we are announcing the OAuth 2.0 Playground, which simplifies experimentation with the OAuth 2.0 protocol and APIs that use the protocol."

"A collection of libraries in Objective-C for working with Twitter's xAuth implementation"

"Unfortunately, Facebook Connect then screws up. The whole point of delegated auth is that we stop users entering their passwords into third party sites. It has to stop. That means both actually entering their details into third parties, but also interface that gives the impression of giving your password to a third party." Indeed, this crap is getting old.

"you _must not_ use embedded rendering controls to present the OAuth process with Yahoo! and Fire Eagle."