All Series, All Summer is something that Kelly @ Reading the Paranormal and I cooked up.  Kelly explains our challenge best on her own Summer 2012 page:

Amanda (my partner in crime in all things) and I are working on clearing out some of our currently languishing series. In other words, we have all these books we own in various series and we weren’t reading them. So. My goal for All Series, All Summer is to make a SERIOUS dent in my half-read series before starting any new ones.

You’re welcome to join us. There is no sign up, no pressure, no check-ins, no anything except a driving need to have a reason to push these books to the top of our respective TBR piles.

If you’re on Twitter, post about what books you’re reading with the #SeriesSummer hashtag.

Other people who are participating:

Kelly @ Reading the Paranormal
Smash @ Smash Attack Reads! 
Jennifer Lane
Stacey @ Stacey Says and Cyndi Sews
Lauren @ Northern Plunder
Allison @ Well-Read Reviews
Felicia the Geeky Blogger
KyleeJ @ Kylee’s Journal
Danie @ Booktacular
Collettakay @ Colletta’s Kitchen Sink
Celine @ Nyx Book Reviews

If you would like to join us and be added to this list, visit Kelly’s page and leave her a comment to let her know.

The following is a list of books I own (or am in possession of) in series that I’ve started:

Black Dagger Brotherhood by J.R. Ward
8. Lover Mine
9. Lover Unleashed

Chicagoland Vampires by Chloe Neill
6. Biting Cold

Curse Workers by Holly Black – COMPLETED
2. Red Glove — finished 7/10 | review on GR

Dark-Hunter by Sherrilyn Kenyon
6. Seize the Night — finished 6/21 | review on GR
7. Sins of the Night — finished 6/24 | review on GR
8. Unleash the Night
9. Dark Side of the Moon
10. Dream Hunter
11. Fear the Darkness
12. Devil May Cry
13. Upon the Midnight Clear
14. Dream Chaser
15. Acheron
16. One Silent Night
17. Dream Warrior

Darkest Powers by Kelley Armstrong – COMPLETED
2. The Awakening — finished 8/2 | review on GR
3. The Reckoning — finished 8/11 | review on GR

Divergent by Veronica Roth – COMPLETED
2. Insurgent — finished 8/15 | review 9/5

The Edge by Ilona Andrews – COMPLETED
2. Bayou Moon — finished 7/5 | review 8/8
3. Fate’s Edge — finished 8/29 | review 10/1

Elder Races by Thea Harrison – COMPLETED
4.6. Devil’s Gate — finished 6/16 | review 7/13

Experiment in Terror by Karina Halle
2. Red Fox

The Fallen by Kristina Douglas
2. Demon

If I Stay by Gayle Forman – COMPLETED
2. Where She Went – finished 6/25 | review 8/1

Immortals After Dark by Kresley Cole
3. No Rest for the Wicked
4. Wicked Deeds on a Winter’s Night

Iron Fey by Julie Kagawa – COMPLETED
3.5. Summer’s Crossing — finished 6/15 | review on GR

Kate Daniels by Ilona Andrews – COMPLETED
5.4. Magic Gifts — finished 6/16 | review on GR
5.5. Gunmetal Magic — finished 8/7 | review 9/3

Katherine “Kitty” Katt by Gini Koch
4. Alien Proliferation — finished 8/21 | review 9/7
5. Alien Diplomacy

Living in Eden by Michelle Rowen
2. Something Wicked

The Morganville Vampires by Rachel Caine – COMPLETED
2. The Dead Girls’ Dance –finished 8/19 | review on GR

Paranormalcy by Kiersten White — COMPLETED
2. Supernaturally — finished 7/26 | review 8/27

Parasol Protectorate by Gail Carriger
5. Timeless

Psy-Changeling by Nalini Singh
2. Visions of Heat

Rhiannon’s Law by J.A. Saare
2. The Renfield Syndrome

Sirantha Jax by Ann Aguirre – COMPLETED
2. Wanderlust — finished 8/27 | review on GR

Soul Screamers by Rachel Vincent – COMPLETED
2. My Soul to Save – finished 6/9 | review on GR
3. My Soul to Keep — finished 8/28 | review TBD

Stephanie Perkins – COMPLETED
2. Lola and the Boy Next Door — finished 6/22 | review 7/16

That Old Black Magic by Jodi Redford – COMPLETED
3. Maximum Witch – finished 6/9 | review 7/11
4. Getting Familiar with Your Demon — finished 6/17 | review 7/23

Vampire Academy by Richelle Mead
2. Frostbite — finished 8/18 | review 9/10
3. Shadow Kiss
4. Blood Promise
5. Spirit Bound

White Trash Zombies by Diana Rowland – COMPLETED
2. Even White Trash Zombies Get the Blues — finished 8/24 | review 9/26

Will Trent by Karin Slaughter – COMPLETED
4. Criminal — finished 7/3 | review 8/23