The ladies over on PHPWomen.org have opened up a new area in their forums - a place to discuss best practices in PHP.
Just a quick note that the Best Practices forum is now open and already has a couple of fast and easy articles in it for your viewing pleasure. For any aspiring writers - there is also a list of future articles if you want to try your hand at it.
There's already a few articles posted including ones discussing PHPDocumentor, spaghetti code, and variable abuse.