If any of these books aren't fantasy, please tell me. If you want to add to the list below, PM me or post your recommendation in a reply.

I do keep this as up-to-date as I can, and I do add every recommendation I receive as long as it fits into the fantasy genre.
What I have so far (I've added my recommendations, too):Faerie Wars Series by Herbie Brennan
Tithe by Holly Black
Valiant by Holly Black (companion book to Tithe)
Ironside by Holly Black (sequel to Tithe)
Artemis Fowl Series by Eoin Colfer
Wicked/Wicked 2 by Nancy Holder and Debbie Viguie
Got Fangs? by Katie Maxwell
Circus of the Darned by Katie Maxwell
A Great and Terrible Beauty by Libba Bray
Rebel Angels by Libba Bray (sequel to AGATB)
The Sweet Far Thing by Libba Bray
Fairest by Gail Carson Levine
The Two Princesses of Bamarre by Gail Carson Levine
Hawksong by Amelia Atwater-Rhodes
Shattered Mirror by Amelia Atwater-Rhodes
Midnight Predator by Amelia Atwater-Rhodes
Moon Called by Patricia Briggs
(**not YA-has adult content**)Chronicles of Narnia by C.S. Lewis
Lord of the Rings by J.R.R Tolkien
Eragon and Eldest by Christopher Paulini
Harry Potter Series by JK Rowling
Gregor the Overlander (Underland Chronicles books) by Suzanne Collins
Conch Bearer books by Chitra Banerjee Divakaruni
His Dark Materials trilogy by Philip Pullman
Keys to the Kingdom Books by Garth Nix (Mister Monday, Grim Tuesday, Drowned Wednesday, Sir Thursday, Lady Friday)
The Naming, The Riddle, and The Crow by Alison Croggon
Mismantle Chronicles by M. I. McAllister
Pendragon Books by D. J. MacHale
Charlie Bone books by Jenny Nimmo
Leven Thumps books by Obert Skye
Dragon's Keep by Janet Lee Carey
Vampire High by Douglas Rees
Prom Dates from Hell by Rosemary Clement-Moore
The Warrior Heir by Cinda Williams Chima
The Wizard Heir by Cinda Williams Chima
Starcatchers series by Dave Barry and Ridley Pearson
Scarlet Moon by Debbie Viguie
Midnight Pearls by Debbie Viguie
Once Upon a Time series by Cameron Dokey
The Good Ghoul's Guide to Getting Even by Julie Kenner
The Wall and the Wing by Laura Ruby
The Chaos King by Laura Ruby
Meg Cabot books
Golden by Jennifer Lynn Barnes
Tatoo by Jennifer Lynn Barnes
Tales of the Frog Princess by E. D. Baker
Atherton: The House of Power by Patrick Carmen
Land of Elyon series by Patrick Carmen
Morganville Vampires series by Rachel Caine
The Secret Life of Sparrow Delaney by Suzanne Harper
Eight Grade Bites (The Chronicles of Vladimir Todd) by Heather Brewer
Gallagher Girls series by Ally Carter
H.I.V.E. by Mark Walden
Camp Creepy Time by Gina Gerhon and Dann Gerhon
Shannara series by Terry Brooks
Supernaturalist by Eoin Colfer
The Grey Griffins Chronicles by Derek Benz and J. S. Lewis
The Black Magicians Trilogy by Trudi Canavan
Protector of the Small by Tamora Pierce (?)
Song of the Lioness by Tamora Pierce
Trickster's Choice by Tamora Pierce
Trickster's Queen by Tamora Pierce
The Will of the Empress by Tamora Pierce
(Basically any books written by Tamora Pierce)
Books written by Shannon Hale
Immortals Quartet by Tamora Pierce (?)
The Eight by Katherine Neville
(**supposedly some mature content**)Mortal Instruments series by Cassandra Clare
Blood and Chocolate by Annette Curtis Klause
Anita Blake series by Laurell K. Hamilton
(**also not YA, I've been told it also classifies as a Horror novel**)Septimus Heap (Magyk) series by Angie Sage
T.Witches series by Randy Reisfield and HB Gilmour
Enchanted Forest Chronicles by Patricia C. Wrede
Cirque du Freak series by Darren Shan
Sweetblood by Pete Hautman
After by Francine Prose
Blue Bloods by Melissa De La Cruz
Dragon Lance series by Margaret Weis and Tracy Hickman
The Ghatti's Tale by Gayle Greeno
East by Edith Pattou
The Daughters of the Moon Series by Lynne Ewing
Warriors series by Erin Hunter
Books by Kelley Armstrong
(**not YA**)Books by Karen Chance
(**not YA**)Books by Patricia Briggs
(**not YA**)Books by Laurell K. Hamilton
(**not YA**)Books by Richelle Mead
Books by Isobelle Carmody
(**detailed burning scene, just FYI**)Elsewhere by Gabrielle Zevin
Night Huntress series by Jeaniene Frost
(Warning: VERY EXPLICIT!!!)Vampire Academy series by Richelle Mead
The Vampire Chronicles by Anne Rice
(**not YA**)The Stuff of Nightmares by Malorie Blackman
It's Kind of a Funny Story by Ned Vizzini
Percy Jackson and the Oympians - Rick Riordan
The Sisters Grimm - Michael Buckley
The Looking Glass Wars - Frank Beddor
Seeing Red - Frank Beddor *Sequel to The Looking Glass Wars*
Animorphs - K. A. Applegate
Fear Street - R. L. Stine
The Nightmare Room - R. L. Stine
The Host - Stephenie Meyer
Dragon Rider - Cornelia Funke
Vampirates - Justin Somper
Inkheart - Cornelia Funke
Inkspell - Cornelia Funke *sequel to Inkheart*
The Wish List - Eion Colfer
Both Sides of Time - Caroline B. Cooney
Remnants - K. A. Applegate
Abarat - Clive Barker
The Thief Lord by Cornelia Funke
Peter and the Starcatchers series by Dave Barry and Ridley Pearson
The Wish List - Eion Colfer
Both Sides of Time - Caroline B. Cooney
Remnants - K. A. Applegate
Abarat - Clive Barker
A Girl's Guide to Vampires - ???
GENERATION DEAD- Daniel Waters
**Please remember to tell me if a book would not count as a Young Adult book! If anyone isn't allowed to read mainstream fiction (as in, not YA) or is uncomfortable reading 'adult' books, etc., I wouldn't want them to start reading one of these books and get a nasty surprise because it has mature content they didn't know was in there. So please let me know if you have concerns about the content of any of the above books so I can put a warning next to them, or if you have concerns/questions about the books in general. Thank you!
-Rosy
_________________
I'm a Librarian. If you want to suggest a book for any of the lists, PM me or Brandy! Any author recommendations/questions/etc. go to us also.
I'm NotMixedEqually on FictionPress and Fanfiction, though I don't really write fanfiction anymore.
Esme House!