With the new edition and growing interest in OAuth, it is time to revisit the old posts explaining OAuth and documenting its development. I am working on a new guide to replace the Beginner’s guide called The Authoritative Guide to OAuth 1.0. I plan to publish an expended version of it later as a book. While it is still early, I would like to give you a sneak Peek at the Protocol History chapter. The rest of the guide will show in sections over the next few weeks.