I've just looked back at the previous reading list and found that most of them remain unfinished. However in that time I've read a number of other books some of which were very good. However the list of books I'm yet to finish seems to be growing:
I've been reading a fair bit of Ken MacLeod recently. So far he's completely failed to turn me into a socialist but no doubt he'll keep trying. I'd suggest starting with Newton's Wake (standalone) or The Star Fraction (first volume of the Fall Revolution series).
Charles Stross is an author who's work I hold in variable esteem. I found The Atrocity Archives and The Jennifer Morgue to be a lot of fun to read. Glasshouse and Accelerando just didn't manage to capture me and I have no current plans to finish them. Singularity Sky and Iron Sunrise were decent. The Merchant Princes series were readable if not earth shattering. I'll probably read the next one more due to inertia than any compelling desire to see the story continued. Of his books I've most recently read Halting State which in my opinion is somewhat of a return to form and which I'd suggest as a good starting place for his work.
Alastair Reynolds is one of my favourite authors at the moment. I'm a big fan of pretty much everything he's written. His work is the kind of hard science fiction that avoids the "magic technology fixes everything" problems you can get in other sci-fi sub-genres (Peter F Hamilton I'm looking at you). His latest novel House of Suns is excellent in a "ignore need for sleep and food until finished" kind of way. Highly recommended.
Despite my dig at Peter F Hamilton above I'm still waiting for The Temporal Void. He seems to have recovered from the debacle of the ending of The Naked God (must...contain...disappointment...at...deus..ex...machina) so my hopes are reasonably high.
The first book by Iain M. Banks I read was The Algebraist which I thought brilliant. I've greatly enjoyed his Culture novels (and the names he gives his ridiculously powerful spaceships amuse me in an agreeably juvenile way. Gravitas is overrated). Matter is his latest novel and it's currently on my "to finish" list. I remain unsure about it, I'll need to consider it when I get back to reading it.
Terry Pratchett is another contender for the title of my favourite author. Apart from the great humour throughout his work I love his ability to take something from the modern world and slot it into the Discworld in a fashion that is entirely consistent with his fictional world yet with an entirely recognisable real world equivalent. His latest book Making Money is hands down my favourite economics book. Although I've met purists who prefer his earlier work its my opinion that he's getting better with age. My attempts to get my mother to appreciate his work however were an unfortunate complete failure.
Of the books I've previously indicated I'm waiting for I've read House of Suns (as discussed above). My copy of The Twisted Citadel by Sara Douglass is in the city according to the Amazon web site and should be delivered Tuesday (damn public holidays). Other than that Saturn's Children by Charles Stross joins the list which is otherwise unchanged.