Over on the DC Comics App and on the Read DC Entertainment website they are having a big 99¢/59p sale on various comics and series to do with super villains. There are some great modern classics such as Paul Cornell’s Action Comics starring Lex Luthor and Gotham City Sirens. Then you have the New 52 miniseries Penguin: Pain & Prejudice which is really worth checking out because it is just about the best Penguin story I have ever read! Also in the sale are older titles featuring The Legion of Super-Villains, the JLA and their various enemies and The Flash and his rogues among other equally appealing comics.
I personally grabbed the whole of the Green Lantern: Sinestro Corps War storyline because it one of my favourite events and it is part of the start of the current Green Lantern craziness that has been going on the past few years. It is a must read for any GL fan or anyone interested in what Green Lantern and the Corps are all about.