Will copy-and-paste the answers I was given when I asked the same question:
DIVINITAS (http://cruelangel.net/divinitas/index.html) It's yaoi though, not slash.
Common as Rain: Eros (http://www.commonastherain.com/eros.html) has some pretty nice slash. She labels them yaoi, but it's more slash.
bishonenworks.com was also recommended. Have you tried baseofoperation.org? I know she was re-doing the site last time I checked, but some original stuff may be up by now... ^.^
no subject
DIVINITAS (http://cruelangel.net/divinitas/index.html) It's yaoi though, not slash.
Common as Rain: Eros (http://www.commonastherain.com/eros.html) has some pretty nice slash. She labels them yaoi, but it's more slash.
bishonenworks.com was also recommended. Have you tried baseofoperation.org? I know she was re-doing the site last time I checked, but some original stuff may be up by now... ^.^
Hope this helps some...
Cheers!
Nozomi