Best link for android expert like me

http://stackoverflow.com/questions/6536730/the-roadmap-to-an-android-development-expert

http://www.javacodegeeks.com/2010/10/android-full-application-tutorial.html

http://www.quora.com/Android-Development/What-are-good-ways-to-become-an-expert-in-Android-development

http://jenkov.com/books/index.html

https://developers.google.com/experts/