Magento built on Zend Framework
Hold on Cowboy
This blog post is pretty old. Be careful with the information you find in here. It's likely dead, dying, or wildly inaccurate.
Deeper and deeper into the Magento core I’ve plunged. It’s built on the Zend Framework. I’ve also been getting acquainted with Zend, with it you can quickly write powerful web applications that can do just whatever you can dream up. Many Google services are built right in.