Toribash
My dad has pirated a lot of music for the last 10 years. So I have a whole page of bands, which leads to a whole page of albums...
I have 50gb of music, and I've only paid for 3 albums in my life.
  1. RATM- Live At The Olympic Auditorium
  2. MachineHead- The Blackening
  3. Chimaira- The Impossibility Of Reason

The rest I have stolen off friend's iPods or DLed.
I have only DLed 1gb at most, and my iTunes library is 50gb.
infamous
I either check the "related" section on Youtube when watching videos or sometimes I look up bands on myspace and then check their friendlists.
last.fm and pandora is good place to find music or just google. 'your top 10 metal bands' and surf in forums :3
[Sigma]
And the second largest penis in animal kindom
word of mouf really

also, if it is played for more than 3 times in an hour in localradio/MTV it wont be in my playlist for about... i say a year or so
...
Friends, (Hey Monday - Homecoming) sister, (The Fray - Little House) radio, (Nickelback - Gotta be Somebody) random music in stores. (Switches - Lay Down the Law)