a) unread sf, in order of entry to LibraryThing:

1. Irish tales of terror, ed by Jim McGarry
2. Forbidden Acts, ed by Nancy A. Collins
3. Seasons of Plenty by Colin Greenland
4. Mother of Plenty by Colin Greenland
5. The Wizard Knight by Gene Wolfe

b) unread sf in order of LibraryThing popularity:

1. The Wee Free Men by Terry Pratchett
2. The Wandering Fire by Guy Gavriel Kay
3. The Darkest Road by Guy Gavriel Kay
4. Kushiel’s Scion by Jacqueline Carey
5. Heart of the Sea by Nora Roberts

c) unread sf in order of popularity here (obviously will rejig this ordering to take account of series order):

1. The Wee Free Men by Terry Pratchett
2. The Darkest Road by Guy Gavriel Kay
3. The Wandering Fire by Guy Gavriel Kay
4. Witch Week by Diana Wynne Jones
5. The Lives of Christopher Chant by Diana Wynne Jones

d) unread non-sf fiction, in order of entry to LibraryThing:

1. Thirteen Steps Down by Ruth Rendell
2. Holy Disorders by Edmund Crispin
3. Wandering Star by J.M.G. Le Clezio
4. The Poetical Works of Edmund Spenser
5. Njal’s Saga

e) unread non-sf fiction, in order of LibraryThing popularity:

1. The Book Thief by Markus Zusak
2. One Flew Over the Cuckoo’s Nest by Ken Kesey
3. My Sister’s Keeper by Jodi Picoult
4. The Sun Also Rises by Ernest Hemingway
5. Mansfield Park by Jane Austen

f) unread non-sf fiction, in order of popularity here:

1. Northanger Abbey by Jane Austen
2. Mansfield Park by Jane Austen
3. Anne of Green Gables by L.M. Montgomery
4. The Crucible by Arthur Miller
5. Oliver Twist by Charles Dickens

g) unread non-fiction, in order of entry to LibraryThing:

1. The Two Faces of Islam by Stephen Schwartz
2. Radical Islams Rules edited by Paul Marshall
3. Untold Stories by Alan Bennett
4. Half-life of a Zealot by Swanee Hunt
5. The provinces of the Roman Empire from Caesar to Diocletian by Theodor Mommsen

h) unread non-fiction, in order of LibraryThing popularity:

1. The Origin of Species by Charles Darwin
2. Dreams from My Father by Barack Obama
3. The Koran
4. On the Nature of the Universe by Lucretius
5. The Stuff of Thought by Steven Pinker

i) unread non-fiction, in order of popularity here:

1. The Panda’s Thumb by Stephen Jay Gould
2. The Language of the Night by Ursula K. Le Guin
3. Profiles of the future by Arthur C. Clarke
4. The Origin of Species by Charles Darwin
5. The Koran

j) books already read, in order of LibraryThing popularity

1. Lord of the Flies by William Golding
2. The Hitchhiker’s Guide to the Galaxy by Douglas Adams
3. Northern Lights by Philip Pullman
4. Frankenstein by Mary Shelley
5. The Adventures of Huckleberry Finn by Mark Twain

k) Hugo-winning novels that I haven’t previously reviewed on-line:

1. The Uplift War by David Brin
2. Hyperion by Dan Simmons
3. The Vor Game by Lois McMaster Bujold
4. Cordelia’s Honor (for Barrayar) by Lois McMaster Bujold
5. A Fire upon the Deep by Vernor Vinge

l) unread New Adventures of Doctor Who (new list)

0. Timewyrm: Genesys
   Timewyrm: Exodus
   Timewyrm: Apocalypse
   Timewyrm: Revelation
1. Cat’s Cradle: Times Crucible by Marc Platt
2. Cat’s Cradle: Warhead by Andrew Cartmel
3. Cat’s Cradle: Witch Mark by Andrew Hunt
4. Nightshade by Mark Gatiss
   Love and War
5. Transit by Ben Aaronovitch

m) unread Eighth Doctor Adventures (new list)

0. The Eight Doctors
1. Vampire Science by Kate Orman
2. The Bodysnatchers by Mark Morris
   Genocide
3. War of the Daleks by John Peel
   Alien Bodies
4. Kursaal by Peter Anghelides
5. Option Lock by Justin Richards

n) other unread Doctor Who books, in order of LibraryThing popularity

1. Wooden Heart by Martin Day
2. The Pirate Loop by Simon Guerrier
3. Forever Autumn by Mark Morris
4. Sick Building by Paul Magrs
5. Wishing Well by Trevor Baxendale

o) Ian Rankin books, starting with the Rebus novels, in series order:

1. Mortal Causes
2. Let It Bleed
3. Black and Blue
4. The Hanging Garden
5. Dead Souls

p) books by writers of colour, in order of entry into LibraryThing:

1. Noughts and Crosses by Malorie Blackman
2. Pomegranate Soup by Marsha Mehran
3. The Emperor’s Babe by Bernardine Evaristo
4. Out by Natsuo Kirino
5. Soul Mountain by Gao Xingjian

q) books on the shelves at end 2005, otherwise not accounted for, going backwards in LT entry order:

1. Wheel Of Engaged Buddhism by Kenneth Kraft
2. Ta Hsueh and Chung Yung
3. Mr. Bloomfield’s Orchard by Nicholas P. Money
4. The Twilight of Atheism by Alister McGrath
5. Saint Therese of Lisieux by Kathryn Harrison

r) books acquired since end 2005, otherwise not accounted for, in LT entry order:

0. Year’s Best SF 8, edited by David G. Hartwell
1. Who Saved Bosnia by Vitomir Miles Raguz
2. The Portadown News by Newton Emerson
3. The Cyprus question and the EU by Andreas Theophanous
4. Peacebuilding and Civil Society in Bosnia-Herzegovina, Ten Years after Dayton
5. A Different Kingdom by Paul Kearney

Plus whatever else should take my fancy.