Friends:
Juggalo Pie
Mazon's Spot

Forums and Groups:
MissEmmaVincentsCauldron
Square Gamer
Thrice Round

Music:
103.9 The X
Anime Remix
lastbeat records
MPEGRadio
OverClocked ReMix
purevolume
SHOUTcast
VGMix.com

bands, artists, and such:
A Perfect Circle
Abloom
Ajar
Alkaline Trio
The Apex Theory
Bad Acid Trip
David Berkeley
BobaFlex
Boy Hits Car
Celtic Woman
Cherry S/T
Chevelle
Cold
Collide
Crackjaw
D12
Deftones
Dir en grey
Disturbed
Free Dominguez
Rob Dougan
Early Day Miners
Eminem
Evanescence
Eyeshine
Finger Eleven
Flaw
Garbage
Greeley Estates
girle
Hanzel Und Gretyl
(hed) Planet Earth
Hemlock
Johnny Hollow
Insolence
In Vision
Jack Off Jill
Yuki Kajiura
Kumiko Kato
Kidneythieves
The Kimberly Trip
Kittie
KoRn
Linkin Park
The Mars Volta
Massive Attack
mc chris
Meg Lee Chin
Mindless Self Indulgence
Yasunori Mitsuda
Nappy Roots
No December
No One's Kind
Nobuo Uematsu
Nocturne
Nonpoint
Onesidezero
OneUp Studios
Otep
Scott Peeples
Project Majestic Mix
Psydoll
Rammstein
Rasputina
Rat Wakes Red
Damien Rice
Andre Rieu
Sandpeople
Sevendust
The Show is the Rainbow
Stemm
Stranger Association
System Of A Down
Tapping the Vein
Taproot
Tech N9ne
Therion
Throe
Mia Doi Todd
Satoshi Tomiie
Tool
Tub Ring
Uncle Fucker
Uncle Outrage
Utada (Utada Hikaru, Japan site)

lyrics sites:
A-Z Lyrics Universe
Dark Lyrics
LetsSingIt.com
Lyrics Time
Punk Lyrics

other music sites:
FaYgoLuVeRs.net
Tatteren Cloth: A Dir en grey Shrine

Anime, Manga and Video Game:
^Ripper's Anime Page
AI Love Network (Ken Akamatsu)
All World Final Fantasy
Amano Company
Anime-Cons
Anime Cubed
Anime Galleries dot Net
Anime News Network
Anime-Soup.com
AnimeMusicVideos.Org
AnimeNfo.Com
AnimeOnDVD.com
AnimeSuki.com
AnimeWaves
Animetion UK
Baka-Updates Manga
Black Heaven // Guren no Honoo
Bokusatsu Tenshi Dokuro-chan
CLAMP No Lumiere
Clow Legacy
COSPA
DDR Freak
Del Rey
Escaflowne Compendium
Fansub TV
Final Fantasy Online
Flying Without Wings
Fukanou na Shigoto
Game Trailers
GameFAQs
Gendou's Anime Music
GENZO Web Comic
gomanga.com
Hand of Gory
harashow
Henshin
Hikari no Kiseki
Jpopsuki
Kaizoku Fansubs
Keiichi Anime Forever
Kotonoha
life line by line
Lililicious
Love Hina / Negima
Love Manga
Lunar Scribbles
maayasakamoto.net
Manganews.net
Mangascreener.Com
Mega64
Memento
minglong
moetan
Myran-san's Manga
Narusegawa.net
Newtype USA
Picture Shrines
Protoculture
RPGFan
SaiyaMan.INFO
Sata Andagi!
Shojo Beat
Shoujo-Ai
Soldats Fansubs
SquareAMP
TOKYOPOP
tOTALLY cHIBI
The Triad
Video Game Director's Cuts
VIZ
Watase's Sorai
WONDERLAND, an Azumanga Daioh fansite
X-Strike Studios
Yakuza
Yuricon
Zelda Universe

Shopping:
The Anime Corner Store (my favorite online domestic anime goods store)
Anime Castle
Anime Nation
Metal Designz
Right Stuf
The Ring Lord
Sport Kilt
Steve Jackson Games
ZTNet Store

Import goods:
Amazon.co.jp
cdjapan.co.jp
GameMusic.com
HobbyLink Japan
J-List
National Console Support, Inc.
Nippon Export
Otaku.com
Play-Asia.com
Sasuga Japanese Bookstore
YesAsia.com

Stuff:
Albina Blachsheep
BAWLS
Homestar Runner
Japanese-English Dictionary Interface (JEDI)
The Lair (The Art of Chainmail)
MapQuest
Ramen Home Page
Schizophrenia.com
VampireFreaks.com
VisiBone