9 reasons why Flappy Bird has become the latest viral gaming hit

Report: Google rejecting Flappy bird clones for being 'spam' - Polygon

Code.org

Social Sharing Sends 'Flappy Bird' Developer to Top of the iOS App Store - MacRumors

You can (re)install Flappy Bird through Google Play Games App : r/AndroidGaming

Bird Gotta Fly: Why Flappy Bird Flew The Coop

Dong Nguyen's Follow-up to Flappy Bird, Swing Copters, is Now Live on Google Play

GitHub - deano2390/OpenFlappyBird: An open source clone of a famous flappy bird game for Android using AndEngine

Make your own Flappy Bird in 10 minutes (Unity Tutorial)

Flappy Bird's gone from the App Store - but you can still get the game

Flappy Bird Game