If i could actually cry... I think either Lilium from Elfen Lied, or the opening for Tsukihime (i forgot the name, and i'm too lazy to remember it) would be to blame.

The opening for Air TV always makes me cry, because remember the Anime.

I think I can't really say which songs make me cry...but maybe it's 1000 no kotoba from Koda Kumi and Broken wings from the anime Trinity Blood...

Ummm..Interesting question!I have a lot of anime music that makes me cry :p I just luv sad music, it's so touching!

Loveless - Michiyuki (ED)
Fruits Basket - For Fruits Basket (OP)
DNAngel - Byakuya - True Light (Acoustic Version)
Fushigi Yuugi - Itooshi Ito No Tame Ni (Slow Version)
Chrono Cross - Radical Dreamers ~ Without Stealing The Jewel (ED)
X TV - Sadame (Piano Version) BGM
Fullmetal Alchemist - Brothers (IN)
Kimi Ga Nozomu Eien - Hoshizora No Waltz (ED)
Vision of Escaflowne - Yubiwa (Movie ED)
Tsubasa Reservoir Chronicles - Kaze No Machi E (IN)
Starship Operators - Chi Ni Kaeru ~On The Earth (ED)
Soukyuu No Fafner - Separation (Piano Version) (ED)
Romeo x Juliet - Inori You Raise Me Up (OP)
Orange Range - Hana
Onegai Teacher - Sora No Mori De (ED)
Nana - A Little Pain (ED)
Naruto - Home Sweet Home (Movie ED)
Gravitation - Tearless; In The Moonlight; Anti-nostalgic (INs)
Air - Aozora (IN)

I know it's a big list but they're beutiful!

Teru no Uta of Gedo Senki... *cries*

I forgot to add "Lilium" of anime "Elfen Lied" That's one sad song. The lyrics are even more melaholny.

Hoshizora no Waltz.... KGNE

beautiful...

The only few that come to mind right now are "Lilium" from Elfen Lied and "Sayonara" from Saikano

Wind - Akeboshi, from Naruto (1st opening). Just this one. 8d

These song make mefeel emotional...

Find the way - GS
Alone - Saiyuki
Fields of hope -gsd

Maybe it's because of how they were sung. And their messages.

rie tanaka's "fields of gold" from gundam is soooo sad, and i've never even watched the anime.... also, a lot of tsubasa chronicle songs by yuki kajiura are amazingly sad. yuki kajiura's compositions really have a lot of emotion in them

well i don't exactly...cry but i do feel sad when i'm listening to these

Shinkirou- Black Blood Brothers (such a bittersweet song)
Requiem~Inori- Trinity Blood (i dunno i thought this song was pretty moving)
Michiyuki- Loveless
Aozora- Air

This Love - Angela Aki
Sayonara Solitaire - Chrno Crusade
Masquerade and Innocent Days - Hitomi
Blue - Mai Yamane
Akatsuki no Kuruma - FictionJunction YUUKA
Fields of Hope - Tanaka Rie
Find The Way - Mika Nakashima
I wanna go to a place - Rie Fu
Shinkai no Kodoku - Yuki Kajiura
Soudanshi - Kaoru Wada
Song for Lover - Kids Alive
A Little Pain - Olivia Lufkin
Shadow of Love - Olivia Lufkin
Stand by me - Anna Tsuchiya
Winter Sleep - Olivia Lufkin
Alone - Mikuni Shimokawa
Kaze no Machi He - FictionJunction KEIKO
Tsubasa - FictionJunction KAORI
You Are My Love - Yuki Kajiura
Gravity - Maaya Sakamoto
Michiyuki - Hikida Kaori
Inori - You Raise Me Up - Lena Park
Thanatos - If I Can't Be Yours

recently, one piece insert song (didnt know the title)~
it was during that sad scene~
i cried when they burned merry and she talked back to them..
waa... its so depressing~~~

MAYBE the first Fate Stay Night Opening and the Elfen Lied Opening

Hmm..
Walking in This Empty Age..
It's Only The Fairy Tale..

Yeah, Alone Again from Rurouni Kenshin makes me really sad.
Also Ichibyou no Refrain (Get Backers), Alone from Saiyuki, Beautiful Memories and Affections Across Time from Inuyasha.
the ending of Wolf's Rain also has a high 'I'm gonna cry" level.

The theme "Scarlet" in piano version of Ayashi no ceres =(...it reminds me Sad th

scarlet -- AnC
eternal snow -- FMWS
alone -- GS
^.^

Slip Out of BECK: Mongolian ChopSquad.. dunno.. just like the lyrics guess..

The end song of Black Blood Brothers made me cry

I remember that i was really touched by the song 'Wheel of Destiny' from GSD. It's one of the few that actually made me spill tears, but i guess dat's cuz the song is played when Cagalli's dad died, so it kinda made me sad...

Oh yes, Sayonara Solitia of Chrono Crusade and Nostalgia of Air (TV).

Chobits ending... i always listen to it and it makes me shed just a tear