Credenda/Agenda: a webzine (and print magazine) about issues relating to Reformed Theology... also one of the best reads around.  I should have put this one up years ago. I definitely don't agree with all of their opinions, but they are so beautifully opinionated about things!!!! The people who write for this magazine think, and say what they think, and defend what they think.  I love it when people can challenge my ideas, or bring up new ones that I haven't thought about yet. And they're intelligently funny, just as an added bonus.   

Who could help but love a periodical in which the first quote (from the current edition) is "Scholars, please. No kissing in the library."????

Or one which would post the following Notice (in the Cave of Adullam column, though you'll you'll have to read the pdf versions to find the recent editions of it):
Important Notice
In a rare serious Cave postscript, we would like briefly to comment on our moderate use of sarcasm on this page. It has perhaps appeared to some readers that our sarcasm is not really Christ-like. We do agree with this criticism, believing ourselves not to be nearly as good at it as He was.

And while I can't seem to find my favourite Similitudes story about the man who finds himself on a hill with a shovel in his hand, this one is also a good one... Footprints, by Douglas Wilson.\

But really... just go read it.  You'll be glad you did... or annoyed... or something... but it won't be boring.