Punk, whether old school or modern day, I am a fan of it.
My favorite punk bands are:
The Clash, The Ramones, Green Day, Blink-182, The Sex Pistols, The Stooges & Iggy Pop, Weezer and Beastie Boys.
I have every Weezer album, and I'm going to get Green Day's 21st Century Breakdown.
So, what are your thoughts on Punk? I like new pop punk and old school punk.

The Clash, Green Day, Blink-182 are good, so's the Sex Pistols. Weezer is awesome. Haven't heard much of the others. Rise Against is currently my favorite though.

For me, I prefer more modern than old. Old just tends to sound like Beatles revamped.

Does Nirvana fall under punk? does green day REALLY fall under punk? the line between Punk/emo/alt rock/rock is very very thin.

i don't think GD is anywhere near punk, but their new album is the bomb

I'm just about to get 21st Century Breakdown.
I'm not sure if I would call Nirvana punk, but alternative does have a thin line with punk.

I would consider nirvana punk long before green day, though I would still consider green day punk.

Well technically most of the bands originally named are considered pop punk, but in my honest opinion they sound a whole lot like regular punk. I think the reason they aren't considered punk is that "real" punk fans consider them to mainstream or what not and thus not punk.

its worth it. really, although it takes up 700 MB for 18 songs

Green Day was good before they succumed to mainstream.
Nirvana is grunge (mix of mainstream metal, alternative, and indie), not punk.
As for me, I'm more of a metal fan (go death and thrash!) but I also like Sex Pistols, Ramones, Misfits, &
Dead Kennedys. Each of these bands are very addicting to listen to, since the songs are so short!
If you need anther suggestion, I heard that Subhumans are good too.

its worth it. really, although it takes up 700 MB for 18 songs [/quote]

I ended up getting GD's Dookie and GnR's AFD, mainly because they only had the explicit version.