PHPDeveloper.org. PHPDeveloper.org is a web site by enygma that covers a lot of PHP issues. There is some overlap between this site and PHPDeveloper at times, but the focus is slightly different.
Php.weblogs.com links to articles that interest me, so this site is mostly about advanced PHP, and covers .NET, IIS and ASP occasionally. PHPDeveloper is more focused on PHP and has stuff for newbies also. [PHP Everywhere]