I'm reading some of the Nebula/Hugo award-winning SF novels of (mostly) the last few years; so in the last couple of months I read (lightly plot-spoiling, but not too bad):

• Bacigalupi's The Windup Girl - a 'biopunk' novel, set in 23rd century Bangkok, in a world where a couple of mega-corps (mega-Monsanto's) have screwed the whole eco-system, and made the world dependent on their bio-engineered calories (where are very hard to come by). The story is interesting, switches between the perspectives of different sides, including the one of a come-alive Japanese love doll. While I liked that, the whole tech/bio background did seem very improbable. Still, liked the book
• Scalzi's Old Man's War series. There are 4 books -- it starts with a bunch of old people that undergo some rejuvenation treatment, and end up in a whole lot of wars with alien races all over the reachable universe. The rest of the books discuss various aspects of the wars, the people involved, colonization, etc. Overall, I Iiked the stories, but I did not like the melodrama Scalzi put in at various places. And there were too many story lines (secondary, but still) that never got resolved. (e.g., the werewolfs). Tech-wise, of course everything is pretty advanced -- but then his weird limitations, very convenient for the plot...
• Haldeman's Forever War (1974) is somewhat of a granddaddy to Old Man's War, following some guy's interstellar military career; it's inspired by the writer's Vietnam experiences. Overall, enjoyable (dated fairly well, although some of the 'future tech' is pretty common today...).
• Just started with Connie Willis' Blackout); about a bunch of future historians time-traveling to various episodes in World War II. So far, the hints to the concepts behind time-travel seem a bit...questionable, but let's see what's still to come...