Recently I managed to find the list again, and it's been endless pleasure:
- American Gods -- Neil Gaiman
- Brave New World -- Aldous Huxley
- The Colour of Magic -- Terry Pratchett
- Consider Phlebas -- Iain M Banks
- Cryptonomicon -- Neal Stephenson
- Cloud Atlas -- David Mitchell
- The Diamond Age -- Neal Stephenson
- The Dispossessed -- Ursula K Le Guin
- Do Androids Dream of Electric Sheep? -- Philip Dick
- Dune -- Frank Herbert
- Foundation -- Isaac Asimov
- Giles Goat-Boy -- John Barth
- Gravity's Rainbow -- Thomas Pynchon
- The HitchHiker's Guide to the Galaxy -- Douglas Adams
- I, Robot -- Isaac Asimov
- The Illuminatus! Trilogy -- Robert Shea and Robert Anton Wilson
- The Left Hand of Darkness -- Ursula K Le Guin
- The Man in the High Castle -- Philip K Dick
- Microserfs -- Douglas Coupland
- Neuromancer -- William Gibson
- Nineteen Eighty-Four -- George Orwell
- Orlando -- Virgina Woolf
- The Shockwave Rider -- John Brunner
- Snow Crash -- Neal Stephenson
- Stand on Zanzibar -- John Brunner
- Stranger in a Strange Land -- Robert Heinlein
- Trouble with lichen - John Wyndham
- UBIK -- Philip Dick
- Watchmen -- Alan Moore & Dave Gibbons
- Woman on the Edge of Time -- Marge Piercy
(I am creatively interpreting "The Colour of Magic" as "all Discworld", "Dune" as "the six Dune books", etc.)