The Girl with the Dragon Tattoo as our June choice and now that I've just finished reading it (stayed up way past my bedtime to do so last night), it is everywhere!
Entertainment Weekly has seemingly had an article about the series of books nearly every week and its this week's cover story. See here and here. I'm hesitant to read any of them because I don't want anything given away, nor do I want speculation on who would play the characters in an English version film.
We're voting for our next few books soon, I'm not sure I can wait two months to finish the trilogy. I think I could read the next two books this week if I had the time.