I've been listening to podcasts for about a year now. I find it's a great way to distract myself at work. I was looking for a great guitar podcast and I found it: Six String Bliss.
It's a weekly show produced by Pipes and PT. They typically do a Guitarist Of the Week (GOW) where one of the two picks a great guitarist to review. This is great because I've learned about guitarists I had never really paid attention to. It also inspires me to check out the guitar work on new albums. That's just the tip of the iceberg.
They also pick a song every week, usually from the Podsafe Music Network that highlights great guitar work .. very very very inspiring stuff. They review stuff they've tried, interview industry professionals, think up cool little contests and they're funny as heck to boot. They're just a pair of laid back guitarists who like to share their passion for guitars with the world.
I'm on a mini marathon, having listened to episodes 13 to 30 in the past two weeks and I plan on listening to all of them (84 episodes so far).
I also have to introduce myself in their forum section. Seems like a nice little community in there.
Check 'em out: