There are at least nine artists with the name "Nora."
1) A metalcore band formed in 1996 in New Jersey, they were first signed to Ferret Records but later moved to Trustkill Records. They have 3 albums and 1 EP released on Trustkill and two EPs on Ferret.
2) A female singer from Bulgaria, runner-up in the second season of Music Idol.
3) A female singer from Malaysia, whose profile is available here:
http://www.last.fm/artist/Nora-Ariffin
4) A Metal band in Turkey previously named as Pyracantha. They have the great hit track "Ruhsuz Kadın".
5) A female singer from Uzbekistan
6) A dark ambience project from Hungary.
7) A female salsa singer from Japan. Formerly fronted Orquesta de la Luz.
8) A female singer from Stockholm, Sweden.
http://www.myspace.com/noraartist
9) A female singer from Macedonia