Zend sponsors Webinars every Wednesday covering a wide variety of topics of interest to PHP programmers. If you look over on the left sidebar, you’ll see the last five that have been published.
If you’ve not had the opportunity to participate, here is one done back in November 2007 by Bill Karwin. Most of you who follow the Zend Framework know that Bill used to work for Zend and was the Manager for the Zend Framework for a while.
Here is Bill Karwin presenting Zend Framework DB Access.
If you are looking for a cheap and easy way to continually learn something new (or if you just want to look busy for an hour a week) the Zend Webinar series is what you are looking for.