More dystopian novels

There are many dystopian novels out there, if you liked the genre and started with The Hunger Games you may be wondering what to read next.Here is a very interesting list of books if you don't know what to read

I am reading Once the second book of The Eve Trilogy click to see the official website, since I read Eve some time ago I don't remember the characters very well.
This is the problem with trilogies.Don't you think it is annoying having to wait so long and then being unable to remember? I have so many dystopian novels in my head that I get confused with:

• What happened to the world? Was it a plague?What kind of plague?
• Are the characters completely human? Half-vampires, half-robots,hybrids?
• What's the date? (more or less)
• Who is missing from the first book?
• Some names are so weird that I don't remember whether they are boys or girls.
• Where are they going? What do they want to get?

It takes me at least two or three chapters to remember.