[music] Hard n sleazy

Babylon Bombs

CRASHDÏET

Psychopunch

Rev Theory

Vains of Jenna

Hardcore Superstar

[music] Pearls of modern metal 2

The Few Against Many

Dirge Within

The Blackout

Downstait

Emphatic

[music] Pearls of modern metal

First - some videos of lately discovered awesome underground bands you've probably never heard of before:
Psycho Choke, Canobliss, Drone, Across the Sun

and maybe not so very modern and undeground, yet still awesome :
Volbeat, Hypocrisy

later - Fall's yammer about music in general:

[music] Short METAL genres introduction

If you think that metal genres division is too complicated this post is for you. Take with a grain of salt.