I collected a couple of links i thought as interesting.
マァマァサ・ムゥ PC version Official Homepage|
マァマァサ・ムゥ Official Homepage
My YouTube account featuring many videos of masa
Komanekoken - Translations of many bands and also of Spiky
Spiky to be - a LifeJournal Community - About everything masa related
Wikipedia entry on masa
Twisted Clock Official Homepage
Calmando Qual Official MySpace
Syaranosui Official Homepage
THIRST Official MySpace
Neurotic Doll Official MySpace
2nd Effect Official Homepage
2nd effect Official MySpace
Having to be - old Spiky fansite with live-reports, japanese
Camui-Love - Page all about Gackt
Nanny's myspace, Mexican fans meetingplace!
Five For Magazine, English language magazine about Japanese music etc.
Lovehotel Oasis, a fansite about JRock in English and Dutch
Sabrina's Homepage, check!
Dir en grey Argentina
Kazane - a french site about all sorts of japanese Indie acts
JiyuuNoOto - another french site about all sorts of japanese Indie acts
Gackt Official Homepage (Dears)
Moonlight Eyes (German Gackt-Fanclub)
Elisa's fansite featuring the band 'Machine'
Sadly, most of the masa related sites have been taken down as it seems so it's hard for me to come up with links. Sorry.