May have done this a while back, but what the heck. This time I'll try to stick on only bands I've started listening to since being on MB.

a= Artofficial
b= Beirut
c= Chic Gamine
d= Daft Punk
e= Elliot Smith
f= Fat Freddy's Drop
g= Godsmack
h= Head Automatica
i= Iron & Wine
j= Jeff Buckley
k= King's X
l= Lamb
m= Massive Attack
n= Natalie Merchant
o= Orgone
p= PJ Harvey
q= Queens of the Stone Age
r= Ride
s= Sia
t= Transglobal Underground
u= Utada Hikaru
v= VAST
w= We All Have Hooks for Hands
x= ?
y=?
z= Zero 7

A- Above The Sky
B- Blink-182
C- caP'n Jazz
D- Discovery Of A Lifelong Error
E- Explosions In The Sky
F- Four Year Strong
G- Godspeed You! Black Emperor
H- Hero Of The Beach
I- Interpol
J- Jawbreaker
K- King Crimson
L- Logwagon
M- Mighty Mighty Bosstones
N- Neon Trees
O- Of Montreal
P- Pink Floyd
Q- The Queers
R- Rage Against The Machine
S- Saetia
T- Tera Melos
U- Ursa And The Major
V- Violent Femmes
W- The Who
Y- Yes
Z- Zolof The Rock & Roll Destroyer

Yay I like lists! Nice stuff there Roemilca.

A - Aphex Twin
B - Built to Spill
C - The Casket Lottery
D - Dillinger Four
E - Eight Frozen Modules
F - Fugazi
G - Guns 'n' Wankers
H - Hot Cross
I - Invisible
J - Juno
K - The Kinks
L - Les Savy Fav
M - Meat Beat Manifesto
N - No Knife
O - On the Might of Princes
P - Plaid
Q - Quicksand
R - Radiohead
S - Skinny Puppy
T - Tomahawk
U - Underworld
V - Van der Graaf Generator
W - Ween
X - ?
Y - Yes
Z - The Zombies

oh boy i get to do this one again... UPDATED FOR 2009!

A - Alice in Chains
B - Between the Buried and Me
C - Chevelle
D - Deftones
E - Every Time I Die
F - Fugazi
G - Gaslight Anthem
H - Helmet
I - Incubus (mostly SCIENCE)
J - Jake One
K - Kyuss
L - Local H
M - Millencolin
N - North Mississippi Allstars
O - One Day as a Lion (i know it was just that one ep, but **** does it rock)
P - P.O.S
Q - Queens of the Stone Age
R - Rage ATM
S - Soundgarden
T - Tool
U - Unearth
V - Viktor Vaughn
W - Weezer
X - XSOMESTRAIGHTEDGEBANDX
Y - i got nothing here. yes sucks.
Z - nothing here either... such obscure letters. does rob zombie count?

A-Avenged Sevenfold
B-BTBAM
C-Clutch
D-Dysrhythmia
E-Eric Johnson
F-Frank Zappa
G-Green Day
J-Jethro Tull
K-Kyuss
L-Led Zeppelin
M-Mastodon
N-Napalm Death
O-the Offspring
Q-Queen
R-Reverend Horton Heat
S-Soundgarden
T-Tenacious D
V-Van Halen
Z-ZZ Top

.Acid Bath
.Beastie Boys
.Can
.Dead Kennedys
.Explosions in the Sky
.Faith No More
.Grails
.Hunter, Charlie
.Immotal Technique
.Job for a Cowboy
.King Crimson
.Lovage
.Misfits
.Neurosis
.Opeth
.Pink Floyd
.Quasimoto
.The Roots
.Sleeptime Gorilla Museum
.Tangerine Dream
.Ulver
.Vai, Steve
.Waits, Tom
.X-ecutioners
.Yakuza
.Zappa, Frank

Not all my faves, but definitely dig 'em.

h, i, p, u, w, x?

Akron/Family
Benoit Pioulard
City and Colour
Damien Jurado
Eric Clapton
Fall of Troy
Great Lake Swimmers
Herbaliser
Imaad Wasif
Jolie Holland
Kaki King
Lydia
Minus the Bear
Neil Young
Outkast
Panda Bear
Quantic Soul Orchestra
Rockapella
Sea and Cake
Team Sleep
Underoath
Van Morrison
William Fitzsimmons
X-ray glasses see me making this one up
Yeasayer
Zao? I think thats a band.

Really? I thought this was supposed to be a list of bands you're into.

A - ...And You Will Know Us by the Trail of Dead
B - Bjork
C - Chester French
D - Death From Above 1979
E - Easy Star All-Stars
F - Funkadelic
G - Gorillaz
H - The Hives
I - The (international) Noise Conspiracy
J - John Frusciante
K - Karen O
L - Led Zeppelin
M - Mars Volta
N - Nirvana
O - Operation Ivy
P - Pixies
Q - Q-Tip
R - Red Hot Chili Peppers
S - Saul Williams
T - Tricky
U - The Unseen
V - Velvet Underground
W - Wax Poetic
X - X-Ray Spex
Y - Yeah Yeah Yeahs
Z - -----------