Continuing my strange obsession with lists of books...
Locus Magazine is the bible of the sffh business -- both in print and online. Every year they poll their reviewers and various other industry people and come up with a pretty extensive recommended reading list for the year. Their categories include: sf novels, fantasy novels, YA books, first novels, collections, original anthologies, reprint anthologies, best of year anthologies, non-fiction, art books, novellas, novelettes and short stories.
I'm obviously not going to reprint all their lists here -- just the sf novel one to give you a taste of what they do.
- The Empress of Mars, Kage Baker (Subterranean Press; Tor)
- Transition, Iain M. Banks (Little Brown UK; Orbit)
- Ark, Stephen Baxter (Gollancz)
- The Devil's Alphabet, Daryl Gregory (Ballantine Del Rey)
- Buyout, Alexander C. Irvine (Ballantine Del Rey)
- Under the Dome, Stephen King (Hodder & Stoughton; Scribner)
- Steal Across the Sky, Nancy Kress (Tor)
- Chronic City, Jonathan Lethem (Doubleday)
- Gardens of the Sun, Paul McAuley (Gollancz; Pyr 2010)
- The Walls of the Universe, Paul Melko (Tor)
- Boneshaker, Cherie Priest (Tor)
- Yellow Blue Tibia, Adam Roberts (Gollancz)
- Galileo's Dream, Kim Stanley Robinson (HarperVoyager; Ballantine Spectra 2010)
- The Sunless Countries, Karl Schroeder (Tor)
- This Is Not a Game, Walter Jon Williams (Orbit UK, Orbit US)
- Julian Comstock, Robert Charles Wilson (Tor)
The complete lists also appear in their February issue. BTW, if you really care about the sffh genres, subscribing to Locus is something you should consider.