Punk Rock didn't die, it just grew up. There will always be bands who will pay homage to the greats, subhumans, Dead kennedys etc..., There are loads of punk rock bands out there..,LOADS. All you need to do is seek them out. Try Myspace, yeah, remember that place? I've gotten to know quite a few bands, rather personally through that site. Things, like last F.m and all that other jazz (music networking) is the way to go. As much as i hate to admit it...,piracy really does keep many bands from getting well known. So get to kno your bands and go see them perform live. Punk rock has always been about the live performances anyway, so what are you wasting time listening to them through headphones, ya muppet?
I think Punk has just evolved into a more blue collar genre.