Utada
- Official site from the singer's U.S. distributor, Island Records, with message board, biography, pictures, mailing list, buddy icons and wallpapers.
- http://www.utada.com

Utada-Online.net
- Fan site dedicated to the Island Records artist. Contains news, discography, profile, links, and audio and video downloads.
- http://www.utada-online.net/

Hikki Texts
- Offers up-to-date English translations of messages originally written in Japanese by the artist.
- http://hikki.blogspot.com

Killing Angel's Homepage
- My little space in the inter-web. Section on Utada Hikaru - Romanji Lyrics and Translations, Piano Sheet Music, Official Screensaver and Wallpaper sets.
- http://home.iprimus.com.au/wongs_cookbook/

A Hikki Obsession
- Biography, ringtones, discography, lyrics, photos, videos, MP3s, and links.
- http://www.artcliff.com/jrofilada/index.html

AsiaFinest: Utada Hikaru
- Profile.
- http://www.asiafinest.com/japanese/utada.htm

Hikki Info in Southbay
- Unofficial website of 16 year old Japanese R&B singer. Provides a discography, photographs, artist information, bulletin board, chat room, news and links.
- http://home.inreach.com/hiro/

Hikaru Utada
- A fan site for the Japanese singer/songwriter. Artist information, discography, and sound clips.
- http://www.senris.com/hikki/