Google App Engine or GAE is a service that lets users run their WebApps (Web Applications) on Google's infrastructure. This means that we can write our WebApp using APIs provided by Google. Test it on a local development server, then upload it onto Google's systems. This is a form of "Cloud Computing".
Also, one important thing to note is that as long as your WebApp operates within the operational parameters(in terms of CPU, storage etc) as described by Google, the service is totally free.
GAE can be programmed in Python or Java. Support for the Python APIs is more extensive. Hence I will be concentrating on using GAE with Python.
I recommend that you start learning Python. Its a very easy language. Here are some resources.
Python site:
http://python.org
Python Tutorial:
http://docs.python.org/tutorial
Python SDK download site:
http://python.org/download
Note: Download Python 2.5, since the AppEngine SDK works with this. It is NOT compatible with Python 3 as of now.
