This site is a real-world example of an application deployed using Google App Engine. The source code is available here. The application was presented at AfricApps 2013. You can see the slides for that presentation here: here

The application is intended to show the following concepts:

• HTML5
• CSS3
• Google App Engine
  • Datastore
  • Google Cloud Endpoints
  • Modules
  • Memcache
  • Tasks

In addition, we provide statistics that give insight into data about a real-world application so that you can understand how Google App Engine works. There is also an API for creating short links.