If you enjoyed "Snow Crash" and "Diamond Age", I'd recommend "Islands in the Net" (if you can get hold of a copy) and "Holy Fire" by Bruce Sterling. Or for something newer, "the Zenith Angle" by same.
I've also enjoyed all of Willam Gibsons books, including the latest trilogy "Pattern Recognition", "Spook Country" and "Zero History".
If you bothered to read through "Cryptonomicon" you'll either love "the Code Book" by Simon Singh more than I did, or hate it :-)
Assuming you've picket through the classics shelf, you might have missed out on Samuel Delany - "The Einstein Intersection" might be a good one to try on for size -- although I actually found "Neveryóna" to be maybe his most interesting book (of the ones I've been able to get hold of) [edit: After "Dhalgren", that is. But I think "Dhalgren" is a bit like Joyce's "Ulysses" -- a classic I haven't gotten around to yet. I spent the better part of ten (10!) years reading through "Dhalgren", picking it up on odd holidays - never loosing touch with the intricate unreality within, readily satisfied after reading a few pages or a chapter -- like nibbling on a choice ham that didn't spoil. It's rather more complex than any of the other books I've listed here].
Also worth mentioning in the "might be overlooked" section is Jerry Pournelle's "Falkenberg's Legion" (republished as "the Prince").
I'm afraid I've been mostly digging through second hand books lately, so the only other semi-recent book I could recommend would be "Broken Angels" by Richard Morgan (technically it's number two in a trilogy -- but I find it stands better on its own).
A book that often escapes even cyberpunk fans is John Brunner's "The Shockwave Rider". It was written in 1975 but is eerily prescient - at least I thought so when I read it in the 90's.
Of course, I also recommend Gibson's books. And "Ender's Game"/"Ender's Shadow", even though they're not cyberpunk/cyber thrillers.
Massive recommendation for 'Blindsight' by Peter Watts, if you want your mind blown. And the author has made it available for free! http://www.rifters.com/real/Blindsight.htm
I bought that book to support him after his shitty customs experience. Turned out to be one of the greatest novels I've ever read. Totally fascinating.
I can heartily recommend most of the stuff in the 4+ comments: Ursula Le Guin, Lem, Strugatsky, Kurt Vonnegut... and of course Alfred Bester, especially "The Stars my Destination", proto cyberpunk.
I quite enjoyed Simon Morden's Metrozone trilogy - which has a lot of similarities to Snow Crash and Daemon (main character is essentially a hacker, run-amok AI, cyberpunkish dystopian future...)
Diamond Age is recommended. You might also like Little Brother by Doctorow.
I would recommend anything by China Mieville.
Take a look http://blog.kaipakartik.com you might find something you want to read.
Altered Carbon by Richard K. Morgan - highly. highly. Recommend. Ready Player One... meh. Much preferred MetaGame (only $2!). Otherwise - The Quantum Thief was a great mind blower. Haven't heard of Daemon, loved Snow Crash. Will look into.
I'd suggest The Diamond Age as a logical continuation from Snow Crash because it's also awesome and because it's very (very) loosely a sequel. It has a different tone and pace and theme, however.
Reputedly, Stanislaw Lem thought Philip K. Dick was the only good American sci-fi author, while Philip K. Dick thought Stanislaw Lem was a KGB conspiracy.
I've also enjoyed all of Willam Gibsons books, including the latest trilogy "Pattern Recognition", "Spook Country" and "Zero History".
If you bothered to read through "Cryptonomicon" you'll either love "the Code Book" by Simon Singh more than I did, or hate it :-)
Assuming you've picket through the classics shelf, you might have missed out on Samuel Delany - "The Einstein Intersection" might be a good one to try on for size -- although I actually found "Neveryóna" to be maybe his most interesting book (of the ones I've been able to get hold of) [edit: After "Dhalgren", that is. But I think "Dhalgren" is a bit like Joyce's "Ulysses" -- a classic I haven't gotten around to yet. I spent the better part of ten (10!) years reading through "Dhalgren", picking it up on odd holidays - never loosing touch with the intricate unreality within, readily satisfied after reading a few pages or a chapter -- like nibbling on a choice ham that didn't spoil. It's rather more complex than any of the other books I've listed here].
Also worth mentioning in the "might be overlooked" section is Jerry Pournelle's "Falkenberg's Legion" (republished as "the Prince").
I'm afraid I've been mostly digging through second hand books lately, so the only other semi-recent book I could recommend would be "Broken Angels" by Richard Morgan (technically it's number two in a trilogy -- but I find it stands better on its own).