Shame On Me: Completed series's that I still need to finish

So I was looking through my bookshelves the other day and I noticed something. I have a lot of series's that I need to finish. There are so many series's that have come to an end that I have only read the first book of. And oddly enough the majority are trilogies :P There are also a few that I only have like one or two books left to read and I'm just like, "Why haven't I read you yet??"

Below are some of the series's that I need to finish. Have you read any of them? What did you think of them?

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Paranormalcy Series by Kiersten White

I loved the first book! Evie was such an awesome character and Lend was adorable! 

The Revenants Series by Amy Plum

I really liked Die For Me, I thought it was so unique and I loved that it was set in Paris. And just look at those covers! So pretty!

Matched Series by Ally Condie

I liked the first book but I read it like forever ago so I can't really remember much of it :P

Nightshade Series by Andrea Cremer

I love books about werewolves so I loved Nightshade. I'm gonna have to re-read it before I start Wolfsbane because again I read it ages ago :P

Across the Universe Series by Beth Revis

I really really liked the first book. It was so different to anything I had read before that point. It was the first sci-fi book I read and I'm looking forward to seeing what's in store in the 2nd and 3rd books.

Gods & Monsters Series by Kelly Keaton

I love books about mythology so it was no surprised that I loved Darkness Becomes Her! I really don't know why I haven't bought the 2nd and 3rd books yet.

Firelight Series by Sophie Jordan

It's about dragons, people. Dragons! Like why the hell haven't I continued with this series?? 

Delirium Series by Lauren Oliver

OK now I know why I haven't finished this series yet. The ending of the first book killed me! It was such a cliffhanger and I'm scared to find out what happens next :( Delirium was amazing but dear god that ending!! 

Starcrossed Series by Josephine Angelini

I really liked the first book. Again it was the whole mythology aspect. The reason I haven't read Dreamless and Goddess? Two words. Love triangle. Why must there be a love triangle? They annoy me so much :/

Hush, Hush Series by Becca Fitspatrick

I really liked Hush, Hush and Crescendo. I think the reason I didn't continue on is because I was reading the Fallen series around the same time so I got a bit sick of fallen angels. I'll have to re-read the first two before starting Silence but I'll be looking forward to getting some more Patch in my life :P

This is just a small selection of series's that I have to finish. I'd be here all day if I was to list out all the series I have to finish :P 

What series do you need to finish?