Root
- Site contains discography, reviews, artwork and streaming radio.
- http://www.rootmusic.fsnet.co.uk/

Riverside
- Four member group from Poland formed in 2001, whose sound has been compared to that of Porcupine Tree, Pink Floyd, and Opeth. Site features bios, discography, pictures, media, and shop.
- http://www.riverside.art.pl/

Recordando o Vale da Maçãs
- Discography, pictures, biography and RealAudio samples of Brazilian band.
- http://www.progressiverockbr.com/recvale.htm

Refractor
- Progressive band from Kansas, US. Site includes CD artwork and full versions of their tracks in various formats.
- http://theprojection.homeunix.org/refractor.htm

Renaissance - Northern Lights
- Fan site dedicated to the band Renaissance, including band information, midi files, guitar chords, bulletin boards, and a chatroom.
- http://www.nlightsweb.com/

Rousseau
- History, discography, news about this German band.
- http://www.progressiverockbr.com/rousseau.htm

Romislokus
- Official site for this Russian group, with audio clips, lyrics, biography, photos, articles, and news updates.
- http://www.romislokus.com/

Re-Vision
- German progressive metal band, news, tour dates, releases, reviews, lyrics and MP3s.
- http://www.lanetothegrey.de/revision/

Red Masque, The
- Philadelphia-area band, news, biography, MP3s, lyrics, pictures and show dates.
- http://www.theredmasque.com

RPWL
- German progressive band, site includes news, biography, line-up, pictures, MP3s and concert dates.
- http://www.rpwl.de/

Riley, Will
- Features the composer's eclectic mix of instrumental metal and orchestral music. Site includes news, pictures, audio and video clips, and CDs.
- http://www.planetofidiots.com/