Google App Engine

Google App Engine frees the developers from most concerns by allowing web application to run on Google's infrastructure. It empowers us to develop complex applications with a simple and elegant API, using robust programming tools like Python, and leveraging the sophisticated data storage, searching and caching technologies that helped Google to succeed. This is cloud computing made easy and it enables us to create high availability Software as a Service without excessive overhead or infrastructure worries.

The LAMP architecture has become popular in the Web industry as a way of deploying inexpensive, reliable, scalable, secure web applications. PHP is commonly used as the P in this bundle alongside Linux, Apache and MySQL. PHP can be used with a large number of relational database management systems, runs on all popular Web servers and is available for many different operating systems. This flexibility means that PHP has a wide installation base across the Internet; over 18 million Internet domains are currently hosted on servers with PHP installed.

Google App Engine makes it easy to build an application that runs reliably, even under heavy load and with large amounts of data. App Engine includes the following features:

Dynamic web serving, with full support for common web technologies
Persistent storage with queries, sorting and transactions
Automatic scaling and load balancing
APIs for authenticating users and sending email using Google Accounts
A fully featured local development environment that simulates Google App Engine on your computer
Scheduled tasks for triggering events at specified times and regular intervals

Applications can either be served from the appspot.com domain or by an organization's own domain name. Applications can be served to the whole world or can be limited to members within an organization. App are built using Java and related technologies or Python which includes a fast Python interpreter and the standard Python library.