Thanks to everyone that has participated in the building of this list.
Here is the revised list from all the previous postings. Keep coming.
And now you can't say I don't know any concept albums to use for your playlists, so I hope to see many new playlists coming to the Corner of the Mooniverse.
Concept Albums as of 10/18/10
Nektar - Remember the Future - 1974
Grobschnitt - Solar Music - 1978
Neal Morse- "?" - 2005
Triumvirat - Spartucus - 1975
David Bowie - Ziggy Stardust and the Spiders from Mars - 1972
Genesis - Lamb Lies Down on Broadway - 1974
Rick Wakeman - Journey To The Centre Of The Earth - 1974
Roger Waters - Radio K.A.O.S - 1992
Aufklärung - De la tempesta ... l'oscuro piacere - 1994
Rick Wakeman - The Six Wives of Henry VIII - 1973
Singularity - Between Sunlight and Shadow - 2002
Magma Mëkanďk Kömmandöh - 1973
Frank Zappa - Joes Garage - 1987
Marillion - Brave - 1994
Jethro Tull- Passion Play - 1973
Pink Floyd - Dark Side of the Moon - 1973
Jon Anderson - Olias of Sunhillow - 1976
Michael Rutherford - Smallcreep's Day - 1980
The Beatles - Sgt. Pepper's Lonely Hearts Club Band - 1967
Richard Wahnfried - Time Actor - 1979
Gentle Giant - Three Friends - 1972
Pye Fyte - The Gathering of the Krums - 1998
PFM - Chocolate Kings - 1975
Spock's Beard - Snow - 2002
Nektar - Recycled -1976 (TobyT)
Dream Theater - Six Degrees of Inner Turbulence - 2002
Moody Blues - Days of Future Passed - 1967
Bo Hansen - Lord of the Rings -1972
Camel - Snow Goose - 1975
Harmonium - Si on Avait Besoin d'une Cinquieme Saison - 1975
The Who - Tommy (proggy in my universe) - 1969 (Actually classified as an Opera but can be stretched to fit definition of concept)
The Who - Quadrophenia- 1973 (must be included if Tommy is)
The Who - The Who Sell Out (1967)
Pink Floyd's - Animals - 1977 (Gooze)
GONG - Flying Teapot-1973 (Gooze)
GONG - Angels Egg - 1973 (Gooze)
GONG - You - 1974 (Gooze)
CAMEL- Nude - 1981 (Gooze)
SAGA - The Chapters Live - 2005. (Gooze)
Neal Morse - Sola Scriptura - 2007 (Ted)
Rick Wakeman - Myths & Legends of King Arthur - 1975 (Ted)
Alan Parsons Project "Tales of Mystery and Imagination" (1976) (Diff_Drummer)
Dream Theater "Metropolis Pt.2: Scenes from a Memory" (1999)(Diff_Drummer)
Genesis "Duke" (1980) (Diff_Drummer)
Jethro Tull "Thick as a Brick" (1972)(Diff_Drummer)
Yes "Tales from Topographic Oceans" (1973)(Diff_Drummer)
Marillion "Missplaced Childhood" (1985)(Diff_Drummer)
Triumvirat "Pompeii" (1977)(Diff_Drummer)
Styx "Kilroy was Here" (1983) (Diff_Drummer)
Frank Zappa's Freak Out 1966 (jtmckinley)
robert calvert - capt lockhead and the starfighters (KenSchwartz)
robert calvert - lucky leif and the longships (KenSchwartz)
robert calvert - hype: the songs of tom mahler (KenSchwartz)
robert calvert - freq (KenSchwartz)
robert calvert - test tube conceived (KenSchwartz)
mike oldfield - incantations (KenSchwartz)
mike oldfield - ommadawn (KenSchwartz)
mike oldfield - hergest ridge (KenSchwartz)
Eloy - power and the passion (KenSchwartz)
Eloy - Dawn (KenSchwartz)
Eloy - Ocean (KenSchwartz)
Manuel Gottsching - E2 - E4 (KenSchwartz)
phillip glass - Einstein on the Beach (KenSchwartz)
phillip glass - Koyaniskaatsi (KenSchwartz)
laurie anderson - United States, Parts 1 thru 4 (KenSchwartz)
Pater Hammill - The fall of the House of Usher (KenSchwartz)
Klaus Schulze - Dune (KenSchwartz)
Hawkwind - Space Ritual Alive - 1973 (KeithieW)
Hawkwind's "Warriors on the Edge of Time" 1975 (thegooze)
Aphrodite's child - 666 (1972) (marquer)
The Box - Black Dog There (2005) (marquer)
The Box - Le Horla de Maupassant (2009) (marquer)
Jack Lancaster and Robin Lumley - Marscape (1976) (marquer)
PFM - Dracula (2006) (marquer)
Jimmie Haskell - California '99 (spewie)
Mandalaband - Eye of Wendor (spewie)
Magma - Köhntarkösz - 1974 (deSousa)
Magma - Ẁurdah Ïtah - 1974 (deSousa)
Magma - K.A. - 2004 (deSousa)
Magma - Ëmëhntëhtt-Ré - 2009 (deSousa)
Hawkwind - The Chronicle of the Black Sword - 1985 (deSousa)
Area - Arbeit Macht Frei - 1973 (deSousa)
Area - Caution Radiation Area - 1974 (deSousa)
Museo Rosenbach - Zarathrusta - 1973 (deSousa)
Blocco Mentale - POA - 1973 (deSousa)
German Oak - German Oak - 1972 (deSousa)
Eloy - Colours - 1980 (deSousa)
Eloy - Planets - 1981 (deSousa)
Triumvirat - Illusions on a Double Dimple - 1973 (deSousa)
Triumvirat - Spartacus - 1975 (deSousa)
José Cid - Cantamos Pessoas Vivas - 1975 (deSousa)
José Cid - 10 000 Anos Depois Entre Vénus e Marte - 1978 (deSousa)
Nick Magnus - Children of Another God - 2010 (dnsrees)