This is a collection of my bandlist of doom and most of those band's official websites. Because looking for band sites can be a** sometimes.

/\ucifer
12012
54-71
Acid Android
Acidman
Aioria
Aireal
AJICO
Aliza Marie
Allure Idea
Amedeus
Analers
Anemone
Art-School
Asian Kung Fu Generation
As'Real
At0
Auto-Mod
Baiser
Bandwagon
Baroque
BBQ Chickens
Beat Crusaders
Blast
Bloodthirsty Butchers
BLue-B
Boowy
Buck-Tick
BUG
Bugy Craxone
Bump of Chicken
Burger Nuds
Cali Gari
Captain Hedge Hog
Cascade
Charlotte
Coaltar of the Deepers
Condor44
Coquettish
Cornelius
Crack Brain
Craze
Cruyff in the Bedroom
Cube Juice
Cune
D'espairs Ray
Dagashi Kashi
Dai 14 Teikoku
Das:Vasser
Da'vid/shito:aL
Deadman
Dear Loving
denno surprised blaat
D'erlangler
Deshabillz
Devil Kitty
Dir en Grey
Dokaka
Dokusatsu Terrorist
Doping Panda
Doremidan
Dorlis
Downy
Drop
Drugstore Cowboy
Drumkan
D-Shade
Dt.
Due le Quartz
Dunexxx
Earl Grey
Eldorado
Ellegarden
Envy
Eve of Destiny
Ex-Girl
Fairy Fore
Fake?
Fanatic Crisis
Fatima
Fiction
Fleming Pie
Fra-foa
FULLGAIN
Galruda
Garden
Gazette
Gill'e Cadith
Ging Nang Boyz
Girl’e
Girotin
Givuss
Glay
Go! Go! 7188
Goatbed
Going Steady
Going Under Ground
Gonin-ish
Grapevine
G-Schmit
Gudou
GULLET
Guniw Tools
Guruguru Eigakan
Hanamuke
Here's the Hamsters
Hermann H. & The Pacemakers
Hermit
Hi-5
hide solo
High Standard
Hoff Dylan
Holstein
Hotaru
Husking Bee
Hyde solo
Inugami Circus-dan
Iroha
Janne da Arc
Jigokue
Jinkaku Radio
JOKER
K@mikaze
Kagerou
Kagrra
Kalen
Kannivalizm
Karimero
Kasu
Katakata 16-fun
Kayo
Kein
Kemuri
Kenzi and the Trips
Khili+Ice
Kinarura
Kishidan
Kiyoharu
Kra
Kuroyume
Kyoka
La'Mule
La Royque de Zavy
La:Sadie's
Lab Life
Lab.
La'Cryma Christi
Laputa
L'arc en Ciel
Lareine
Lolita No. 18
Loz'a=Veria
Lucifer Luscious Violenoue
Luminous Orange
Luna Sea
Moi Dix Mois
Machine
Mad Capsule Markets
Madeth Gray'll
Malice Mizer
Medical Trance Peach
Mei
Melody
Melt Banana
Meri
Metronome
Mirufine
Misora
Missalina Rei
Mitsuko London
Moko
Mongol 800
Mo'some Tonebender
Mucc
Murasaki
My Way My Love
NAHT
Nananine
Nightmare
Nil
Ninedays Wonder
Nirgilis
Nogozen
Noir Fluerir
Noodles
Nookicky
Noshow
Numb
Number Girl
Onanspiru Mermaid
Onmyouza
OOIOO
Pavers
Pe’z
Pealout
Penicillin
Penpals
Pierrot
Plastic Tree
Pleur
Polaris
Polysics
Pool
Porori
Psycho le Cemu
Quruli
Rauya
Raphael
Remioromen
Rice
Rouage
Rumtag
Sads
Schwarz Stein
SCISSOR
Seagull Screaming Kiss Her Kiss Her
Sex Machineguns
Shulla
Ska Ska Club
Soft Ballet
Soulsberry
Sparta Locals
SPITZ
Sugar Plant
Suneoair
Supercar
Syndrome
Syrup16g
Takako Minekawa
Tamio Okuda
Tetsu69
The Back Horn
The Band Apart
The Boredoms
The Pees
The Piass
The Pillows
The Stalin
The Yellow Monkey
Thee Michelle Gun Elephant
There is a Light that Never Goes Out
Toe
Tokyo Jihen
Tokyo Ska Paradise Orchestra
Triceratops
Tusk solo
Unicorn
Upandcoming
Vanilla
Velvet Eden
Vidoru
Vinette
Walrus
wino
Wrong Scale
Wyse
X Japan
Ya-foo!
Yogurt-Pooh-
Yoshii Lovinson
Zazen Boys
Zeppet Store
Zi:Kill
Zigzo

Online Stores:
HMV
CDJapan
J-XYZ
Brand-X
3rd Stage
Guruguru

MUCH MUCH MUCH LOVE TO JENPAN FOR HER LOVELY HELP IN DOING A GOOD CHUNK OF THE LIST FOR ME.