Please help....

Death Note
Ouran High School Host Club
Naruto
Dragon Ball Z
Vampire Knight
과일 Basket
Hellsing
Vampire Kisses
Nana
Azumanga Daioh
School Days
D.Gray
Salior Moon
Tokyo Mew Mew
Power Puff Girls Z
Lucky Star
Inuyasha
High School of the Dead
Super Gals
Chibi Vampire
Full Metal
Clamp
Dr.Slump
Sand Land
this is all I can think of

Bleach
Naruto
Elfen Lied
Inuyasha
Dragonball Z
The Melancholy of Haruhi Suzumiya
Tenchi Muyo
Death Note
Soul Eater
Digimon
Pokemon

Based on a quick glance at your clubs, I'd say 당신 might like...

-Tsubasa Chronicles (If 당신 haven't seen it already.)
-Angel Beats!
-Kaichou wa Maid-Sama
-xxxHolic?
-...Baka to Test to Shoukanjuu?

Okay, my creativity is sapped already. xD

Kaichou wa Maid-sama
Black Butler
Orankoukou_HostClub
Gintama
Shakugan_No_Shana

Im watching Kyo Kara Maoh. Its awesome,great characters, story line.

Vampire knight + Vampire knight guilty
Dinosaur King
Soul eater
Winx Club
Pokemon
Bakugan
Digimon

Digimon
Death Note
Vampire Knight
나루토 Bleach
Another
Fortune Arterial
Hokage No Plieades
Magical Girl Lyrical Nanoha
Sugo Chara
Jewelpet/Jewelpet Tinkle
e.t.c

HETALIA!!!!
Ouran High School Host Club!
Full Moon wo Sagashite!
Shugo Chara!
Maid-sama
HEEETTAAALLLIIAAAA!!!!
Im not sure what kinda genre your into but these are romantic comedys!! my favorite!! well i wouldnt say 헤타리아 is romantic but its funny and amazing! waattccchh itttt!!! :DD

Trinity Blood
Ghost in the Shell
Cowboy Bebop
Durarara!!
Full Metal Alchemist
Samuria Champloo
Code Geass
Loveless
Blood +
(image from Cowboy Bebop!)

Kuroshitsuji
Full Metal Alchemist
Full Metal Alchemist : Brotherhood
Code Geass
Soul Eater
Fairy Tail
D Gray Man
Vampire Knight
Elfen Lied (if 당신 like gore)

Have 당신 ever heard about 07-Ghost?