Presented at the Boston WordPress meetup, September 28, 2009.
"In this presentation I will give a high level overview of how WordPress can be customized through custom plugins. I will walk through the creation of a very simple plugin in PHP, the default development language for WordPress. I will then present HookPress (http://mitcho.com/code/hookpress/) which is a plugin of mine which adds webhooks to WordPress, letting developers extend WordPress in languages other than PHP, such as ruby, python, perl, etc."
"This will be an intermediate level session designed for users already comfortable with publishing with and customizing a wordpress.org installation and have maybe even installed a few plugins. Moreover, I will assume some familiarity with programming, though not necessarily the PHP language."