I discovered a podcast last night called "Out of the Past: Investigating Film Noir".
Apparently, it's been going since July 2005.
I've been trying to catch up with it. They take a look at both classic noir films and more recent flicks that owe a lot to the genre. Each episode focuses on one specific movie and they're updated every two weeks.
Go here to give them a try. They even have an episode devoted to Bladerunner. Shweet!