Nerdfighters, I need help!

So, I just finished reading Divergent and Insurgent. I absolutely loved them, but now I'm dying to read another good dystopian fiction.

Any recommendations?

I've already read 1984, The Giver, Fahrenheit 451, Brave New World, and The Hunger Games.

We by Yevgeny Zamyatin

The Handmaid's Tale by Margaret Atwood is a classic, and for good reason.

I know this is way late, but the Uglies series by Scott Westerfeld is amazing, and The City of Ember series is awesome as well

The Lunar Chronicles, starting with Cinder.  Cress just came out two days ago!?  Okay, I'm off to the bookstore...

Chaos Walking series by Patrick Ness or Unwind series by Neal Shusterman.

The Maze Runner is a great series.

Feed can be considered dystopian, I'd say, and that was phenominal.

Fahrenheit 451 is always a classic.

Have you read any of the Dragonriders books?  I started with Dragonsong of the Harper Hall trilogy, though the author always preferred people to start with Dragonflight of the Dragonriders of Pern trilogy.  These aren't really dystopian, but they fall short of the Utopia the founders of Pern were hoping to establish.