Punk-

• "Get Warmer"- Bomb the Music Industry!
• "Reinventing Axl Rose"- Against Me!
• "Fuck World Trade"- Leftover Crack

Folk-

• "People Who Can Eat People Are the Luckiest People Alive"- Andrew Jackson Jihad
• "French Quarter"- French Quarter
• "The Fear, The Fear, The Fear"- Defiance, Ohio

Okay. that was really mostly folk punk.

Hip Hop/Rap-

• 36 Chambers. duh.
• "Madvilliany"- Madvillian
• "Fishscale"- Ghostface Killah

Hip Hop (Instrumentals)-

• "Donuts"- J Dilla
• "Shades of Blue"- Madlib
• "Beat Konducta Vol. 6"- Madlib

Ska-

• "Three Cheers for Disappointment"- The Arrogant Sons of Bitches
• "Now in Technicolor"- The Know How
• "Kill Punk Rock Stars"- The Fad

Hardcore-

• "Bad Brains"- Bad Brains
• Entire Discography- Minor Threat
• "Random Violence"- Vitamin X

Indie-

• "Silent Alarm"- Bloc Party
• "A Lesson In Crime EP"- Tokyo Police Club
• "The Futureheads"- The Futureheads