I just finished “Blindsight” by Peter Watts. For those of you who like their SF crunchy, this one may be worth a look. It’s a First Contact story with a bite, and it manages something rare in SF these days: the aliens are truly alien.
Peter Watts doesn’t do light, fluffy, or cheery, so it’s not exactly a feel-good read, but if you like stories that yank you out of your comfort zone and make you think, his books are usually a good bet. He’s also an excellent writer, stylistically speaking, and it’s a crime he’s not more popular or well-known in the SF world. Blindsight was on the ballot for the 2007 Hugos, and knowing the field that year, I think it was the best pick. (Alas, he didn’t win.)
Anyway, check it out if you’re looking for a good read and like hard SF. Peter Watts has also made it available online under a Creative Commons license, so you can download it for free. Just consider buying the print version if you like it. I bought the paperback when I was about twenty pages into the e-book.