Here is my list: I'm asking this so I can add more to my list

http://www.materialup.com/

http://androidniceties.tumblr.com/

https://www.androidexperiments.com/

http://unitid.nl/androidpatterns/

http://www.android-app-patterns.com/

http://viewpagerindicator.com/

https://dribbble.com/tags/material_design