[Mizeria]

you should look into "Hush Hush" by Becca Fitzpatrick
I've only read the first book and I loved it. I didn't realize it was a series (I got it right after the first one came out) And I'm planning to start the second book today or tomorrow. Its an interesting story. I'll be sure to come back and tell you if the second is any good.

link to authors website:
http://beccafitzpatrick.com/

Also, Moon Called by Patricia Briggs (Mercy Thompson series)
Or any of her books/series really.
I own them all, and I've read most of them and loved them. Theres a few I haven't gotten to yet because I loaned them to my boss.. >.>;

Moon Called is your basic fantasy type book. It has shape-shifters, werewolves, vampires, witches, Fae, magic items, and a awesome story. Its a six book series with the 7th coming out next year. I can't wait. She also has an off shoot of the series from a different characters point of view. And its not one of the main ones its just a character you hear about but don't meet much in the Mercy Thompson Series.

Authors Website;
http://www.patriciabriggs.com/books/

On the Percy Jackson Series:
I loved it personally, except for book 5. I felt the author had a hard time wrapping everything up with that last book... things... didn't really flow for me. I hope its not the same for you.
Be sure to read the Demigod Files! Its part of the series. It ties the books together. If I remember right it goes between 4 and 5. Its a group of short stories. I hadn't realized the it explained things... so I didn't bother with it until after the 5th book. It really explained somethings.
There is also a Sequel Series to the Percy Jackson Series! I've read most of the first book and loved it.
I haven;t yet touched his other series I got the book but borrowed it out before I could read it...

If you would like more titles I've got a bunch more!
Just let me know.

-- I read a lot and many books at one time if you couldn't tell, but I also have a habit of borrowing out the books before I even get a chance to read them. >.>;