The Zend Developer Zone has posted their latest podcast in their "ZendCon Sessions" series (talks given at last year's Zend/PHP Conference & Expo) - this session from David Sklar about data analysis at Ning.
Welcome to the ZendCon 2008 edition of the ZendCon Sessions. The ZendCon Sessions are live recordings of sessions that have been given at previous Zend Conferences. Combined with the slides, they can be the next best thing to having attended the conference itself. [...] This episode of The ZendCon Sessions was recorded live at ZendCon 2008 in Santa Clara, CA ... and is David Sklar giving his talk: "Static and Dynamic Analysis at Ning"
Speaking of which, if you'd like to catch up (and there's plenty of them), you can check out the ZendCon Sessions page for links to all previous episodes.