If you're a part of a school or other large (or small, for that matter) educational institution, and are looking for proof to hand your boss about the benefits of "going open source" and choosing PHP over some of it's rivals, perhaps this new iSeminar from Zend can help.

In this iSeminar Zend addresses the application and uses of PHP in the academic forum and unfold Zend's education initiative. Zend has partnered with universities using opensource PHP-based web mail applications such as SquirrelMail and Horde/IMP to provide them with the best solution to increase their server's performance.

The target audience for this one is, of course, universities or other academic institutions using PHP in any capacity as well as department IT related fields, educators and webmasters. It's only about 40 minutes long, and is availible whenever your boss decides he/she has some time...check it out.