[Discover] Royal Holloway University of London Golden Pages http://www.rhul.ac.uk/Music/Golden-pages/
(classical directory reference music) 
[Discover] SIBMAS International Directory of Performing Arts Collections and Institutions http://www.sibmas.org/idpac/index.html (collections directory theater reference)
[Discover] Backstage http://www.backstage.ac.uk/ (uk research directory theater)
[Discover] European Music Office http://www.musicineurope.org/news/index.html (resources directory reference affiliate)
[Discover] SourceForge.net: Software Map http://sourceforge.net/softwaremap/index.php (musicbiz directory sourceforge opensource)
[Discover] Music torrent sites http://home.quicknet.nl/qn/prive/romeria/music.htm (directory music links bittorrent)
[Discover] Music, Audio, Lighting and Entertainment Business Directory http://www.musicyellowpages.com/ (search directory retail music)
[Discover] SIBMAS International Directory of Performing Arts Collections and Institutions http://www.sibmas.org/idpac/index.html (collections directory theater reference)
[Discover] Backstage http://www.backstage.ac.uk/ (uk research directory theater)
[Discover] European Music Office http://www.musicineurope.org/news/index.html (resources directory reference affiliate)
[Discover] SourceForge.net: Software Map http://sourceforge.net/softwaremap/index.php (musicbiz directory sourceforge opensource)
[Discover] Music torrent sites http://home.quicknet.nl/qn/prive/romeria/music.htm (directory music links bittorrent)
[Discover] Music, Audio, Lighting and Entertainment Business Directory http://www.musicyellowpages.com/ (search directory retail music)