New York PHP has a nice series of PHP best practices called phundamentals. These are basically common questions that are posed to the NYPHP-Talk mailing list, and after a few weeks of discussion, all of the various perspectives and recommendations are compiled into a document and made available from the Web site.

I think this is a great approach for providing information, because multiple perspectives are always nice. There are already several articles, and with the recent launch of security-related phundamentals (that I am especially interested in, of course), I think this will become an important resource for PHP developers.