Collection of links for every Android developer

dev.android.com

tools.android.com

source.android.com

Google+ Groups

Communities

UI / Material Design

Prototyping

Blogs

Company Blogs

Library repos

Videos

Podcasts

News websites

Newsletters

Help other Android devs

Android GDEs (Google Developer Experts)

Googlers

Other major community contributors

Open Source Apps

Learning Resources

Books

No books will be listed here. They'll probably be mentioned in a separate repo.