The cool thing about this age and tme is there is always a website for something. While doing random google searchs i came across bookseer.com.This website pretty much picks your next book . . . well it give you a list of books you should read next based on the name of the book and author you just read.
Granted this is nothing new because goodreads.com has suggestions as well but I feel this is a bit more convient. This also may not be new to you but it is new to me and i decided to share :)