Rest api development best practices resources

Here is just list of resources that I found and do not want search one more time:

Разработка web API / Хабрахабр
http://habrahabr.ru/post/181988/

Designing a Beautiful REST+JSON API (and other video around)
http://www.youtube.com/watch?v=5WXYw4J4QOU

steps toward the glory of REST
http://martinfowler.com/articles/richardsonMaturityModel.html

API creation blog:
https://blog.apigee.com/
http://apigee.com/about/api-best-practices/all/ebook

API creation mail list:
https://groups.google.com/forum/#!forum/api-craft