What books are being read by your spouse/kids/friends? Do you discuss books with them? Is their much overlap? Phil and I have very little overlap but I usually know what books he will like if I read a review. We also tend to like the same books as a couple we know so we can pass books and recommendations back and forth. Do your real life friends read similarly to you or just your online pals?
P.S. Asked my son this question at dinner and Josh chose MIDDLESEX and THE MARRIAGE PLOT (Eugenides), and the STEVE JOBS biography as his three most recent reads.