From Chris Shiflett's blog:

Is it December again already? I like good traditions, so with the help of Sean and many others, PHP Advent is back again, this time with its own domain. I would call it a web site, but that might be stretching the truth at the moment. Jon is going to help us out with a simple design in the very near future. The focus, of course, is the quality content from our gracious authors.

The December 1st post for this year is one by yours truely - You Need the PHP Community. For more great content as the month goes on, you can keep up either through their feed, on Twitter or just by heading over to the site each day.