Apocalypse
- Progressive band from Brazil, news, tour dates, albums and pictures.
- http://paginas.terra.com.br/arte/closeto/

Aethellis
- From Maryland, USA, profile, sound samples, instruments, reviews, links, interviews, schedule and newsletter.
- http://www.aethellis.com/

Alaska
- Official site of progressive rock duo from Pennsylvania (USA), with biographies, reviews, and sounds clips.
- http://www.alaskasongs.com/

Arzmusic
- Catalog and audio clips of progressive instrumental art-rock, blending hard rock, classical, and Middle-Eastern influences.
- http://home.comcast.net/~low-tv/arzmusic/arzmusic.html

Anglagard
- Fan site for progressive rock band from Sweden. News, tour dates, sounds, and pictures.
- http://www.anglagard.net/

The Aurora Project
- Atmospheric symfo with a bit of goth and metal.
- http://www.theauroraproject.com/

Aurora Lunare
- Official site of the Italian band from the seventies in English and Italian. Gig listings, band history, reviews and MP3s.
- http://digilander.libero.it/luctonal/AURORA_LUNARE/

Aether
- Brazilian band, history, photos and discography. Available in English and Portuguese.
- http://www.rockprogressivo.com.br/aether

Ambrosia
- Official site for this US progressive band, with news, tour schedule, video and audio files, biography, discography, reviews, and articles.
- http://ambrosiaweb.com/

Aspect Band, The
- MP3.com - Progressive band from Shelton, CT. Band details, albums, photos, MP3 samples and gig schedule.
- http://www.thunderidge.com/

Atomic Opera
- Progressive band from Texas, USA. News, shows, biography, merchandise, message board, fan club and pictures.
- http://www.atomicopera.com/

Ars Nova
- All-girl progressive band from Japan.
- http://www.progconcepts.com/arsnova/index.html

Ako Doma
- Slovak art rock group, news, information, MP3s and pictures.
- http://akodoma.cyberspace.sk/

After Crying
- Hungarian progressive band, news, biographies, concerts, discography, history and an FAQ.
- http://www.aftercrying.com/

AngelEarth
- Progressive duo utilising keyboards and vocals, news, reviews, lyrics, music.
- http://www.angelearth.org/

Armonite
- Italian band, news, tour dates and a background to their music.
- http://www.armonite.it/

Alias Eye
- German progressive band, news, releases, gigs, pictures and reviews.
- http://www.aliaseye.com/

A.C.T
- Swedish progressive band, includes a biography, news and photo gallery.
- http://actworld.nu/

Agitation Free
- Official site for the progressive band from Berlin, Germany, biography, news, gigs and soundclips.
- http://www.agitation-free.de/

All Too Human
- Progressive metal/rock band from Texas. The site features sound clips and show dates.
- http://www.alltoohuman.com/