The total number of Christmas stations at http://www.100000watts.com/specials.asp
stayed at 490 until a few days ago and will probably hold forth at 492 for 2009.
Don't forget the special programming on public radio. It's probably on right now.
It's also time to get going with plans to listen/record the two twenty-four marathon Christmas shows coming up soon!
(That reminds me, I need to get a definite ruling whether Robert Drake’s “The Night Before on XPN” will return for a seventeenth (?) year.)