A Google search returns 3 parts:

Part 1: https://hueniverse.com/beginners-guide-to-oauth-part-i-overv...

Part 2: https://hueniverse.com/beginners-guide-to-oauth-part-ii-prot...

Part 3: https://hueniverse.com/beginners-guide-to-oauth-part-iii-sec...

However, I would like to confirm there isn't more