The OAuth community is dedicated to helping provide information on the proper use of the OAuth protocols through a series of articles on different topics.

End User Authentication with OAuth 2.0

While OAuth is not an authentication protocol on its own, there are a number of high-profile authentication protocols built with OAuth 2.0. This article seeks to expose common pitfalls and demonstrate how to do end user authentication using OAuth 2.0 in a secure and reliable manner.

OAuth 2 Simplified

OAuth 2 Simplified by Aaron Parecki describes OAuth 2 in a simplified format to help developers and service providers implement the protocol.

OAuth 2.0 Servers

OAuth 2.0 Servers, written by Aaron Parecki and published by Okta, is a guide to building an OAuth 2.0 server, including many details that are not part of the spec.