Apigee is a group that is obsessed with APIs. They are all about helping companies do a better job of dealing with their API’s in many areas including education, strategy, security, and scalability. On their web site they offer many free resources and on their YouTube channel they have many great webinars on different API-related topics. The API Craft Google Groups site is a great forum for communicating API related question, challenges and information as well.
The following is a very informational webinar around RESTful API design. I think this covers many great points and is a great discussion starter for novice and advanced developers. I highly recommend anyone who works with API’s carves out some time and watch this video. Under the video is the slideshow presentation to follow along.