I checked off the classic Gone with the Wind by Margaret Mitchell right before I got my Kindle so unfortunately I was lugging around a giant book that kind of looked like a romance novel. It was an easy, absorbing read, however it's hard to overlook the fact that its treatment of race is just so different from today that it's almost impossible to get over.
I also checked off Brideshead Revisited by Evelyn Waugh. A much harder book, at least for me to understand. I read it during the summer of 2011, and I don't know if it was too heavy for summer reading, but a lot of it seemed to fly over my head at least in terms of greater themes and considerations of religion and faith and compatibility.
While not on the list, I also read Count of Monte Cristo. It was slow going at first, but when the revenge dominoes start following there's a lot of gasping, a lot of "oh no he didn't!"'s, and a satisfying, happy ending for the Count. I found it a lot easier to get into than The Three Musketeers which must be why I was able to finish it and not The Three Musketeers. Too bad The Count of Monte Cristo's not on the list and The Three Musketeers is.