Been reading quite a bit as of late, but here are some worth noting:
Retribution Falls by Chris Wooding - First in the Tales of the Ketty Jay series, and it really reads like a Firefly type of series. A really fun book, worth checking out. The sequel is coming out soon, Black Lung Captain. One of my favorite reads this year so far.
The Silver Bear and Columbus by Derek Haas - This is just a non-stop action, no nonsense series following a hitman. These are the first two in the series, quite enjoyable and fun.
Mercy Thompson series by Patricia Briggs - Urban Fantasy mystery thriller which I enjoyed quite a bit. Main character is a native american walker who can change into a coyote, she's a mechanic who was raised by a pack of wolves. There are vampires and fae. She's always overpowered by everyone, though always finds a way to do what needs doing, plus being a walker gives her certain powers that many of the supernatural dislike. The fae have already come out to the world, the warewolves are thinking about it, etc. Good warewolf pack and vampire politics. A fun read in all.
Changes by Jim Butcher - Latest in the Dresden Files series, and nothing else needs saying other than this was a very awesome book, my favorite in the series and a real game changer.
I am Not a Serial Killer by Dan Wells - Now this one you guys have to check out. Together with Changes, it has been my favorite read this year so far. It's the first of the John Cleaver series, and it follows a sociopath teenager. Fans of Dexter surely have to check this out. There are quite a few similarities, but it's distinctive enough. The main character is great and very interesting. Like Dexter he has a set of rules (not a code), but the reason for those rules are to prevent him from becoming a serial killer. He has a fascination with them, and when a serial killer comes to town it's like a movie star showing up. So he starts investigating, and through his investigation some of his rules gets compromised, so it starts becoming harder to control himself, etc. In all he's a fascinating and very creepy kid. Really really recommended, you wont be disappointed. I should warn you though, the series contains a bit of the supernatural, for example there are demons around. Sequel is already out in the UK, Mr. Monster, coming in September to the US.