ok, shame on me for not doing a search before,
architecture radio thread
http://www.architecture-radio.org/learn/
but is that still the only one?
how about spanish programs?
and why wasn´t abalos&herreros ever mentioned in this forum?

I don't know if it's in blog form, but there's always something related to architecture being talked about on NPR. Try there site.

There is Frances Anderton's DnA on KCRW www.kcrw.org..

And the occasional Building Sound (http://institute.advancedarchitecture.org/Programs/BuildingSound
By the Advance Architecture folks

Architecture Talk, jsut search it in itunes and it should pop up...

Fraces Anderton's voice drives me crazy! Why is it KCRW's commentators have the worst radio voices ever? The guy who does the book talk thing is positively unlistenable. (bit of dirt on Frances, a Brit once told me that she is not of the same social class as her accent.)

There's also Carol Coletta's Smart City, more urban planning than architecture.