On the Ibuildings techPortal there's a new post with the latest episode of their Dutch PHP Conference sessions (from 2009's event) - Dustin Whittle's talk on open source at Yahoo.

Join us for a case study on using open source tools to build a platform for enterprise web applications. Find out what worked and what didn't when building scalable web applications with open source tools (apache, php/apc, mysql, memcache, symfony, yui). Learn how you can tools Yahoo! offers for developers and how your team can leverage Yahoo's Open Stack for your next web project. We will examine the components that make up Yahoo's open stack: developer tools (YUI), data APIs (YQL), and the application platform (YAP).

You can either listen to this latest episode on the in-page player or you can download the mp3 directly from Ibuildings and listen at your leisure. You can also find his slides for the presentation here.