A series of series

These are most of the series that I'm following (some more avidly than others I'll admit).

Mercedes Lackey:
Valdemar:
The Mage Wars
Black Gryphon
White Gryphon
Silver Gryphon

The Last Herald Mage
Magic's Pawn
Magic's Promise
Magic's Price

The Collegium Chronicles
Foundation
Intrigues
Changes

Brightly Burning

Vows and Honor
Oathbound
Oathbreaker
Oathblood

By The Sword

Exile's Honor
Exile's Valor

Take A Thief

Heralds of Valdemar
Arrows of the Queen
Arrow's Flight
Arrow's Fall

The Mage Winds
Winds of Fate
Winds of Change
Winds of Fury

The Mage Storms
Storm Warning
Storm Rising
Storm Breaking

Darian
Owlsight
Owlflight
Owlknight

Anthologies
Sword of Ice
Sun In Glory
Crossroads
Moving Targets
Changing The World

Five Hundred Kingdoms
The Fairy Godmother
One Good Knight
Fortune's Fool
The Snow Queen
The Sleeping Beauty 
Beauty and the Werewolf

The Elemental Masters
The Fire Rose
The Serpent's Shadow
The Gates of Sleep
Phoenix And Ashes
Reserved For The Cat
The Wizard of London

The Dragon Jousters
Joust
Alta
Sanctuary
Aerie

Laurell K. Hamilton
Anita Blake
Guilty Pleasures
The Laughing Corpse
Circus of the Damned
The Lunatic Cafe
Bloody Bones
The Killing Dance
Burnt Offerings
Blue Moon
Obsidian Butterfly
Narcissus in Chains
Cerulean Sins
Incubus Dreams
Micah
Danse Macabre
The Harlequin
Blood Noir
Skin Trade
Flirt
Bullet

Merry Gentry
A Kiss of Shadows
A Caress of Twilight
Seduced by Moonlight
A Stroke of Midnight
Mistral's Kiss
A Lick of Frost
Swallowing Darkness
Divine Misdemeanors

Sherrilyn Kenyon (Not including various short stories in different anthologies)
Fantasy Lover
Night Pleasures
Night Embrace
Dance with the Devil
Kiss of the Night
Night Play
Seize the Night
Sins of the Night
Unleash the Night
Dark Side of the Moon
Fear the Darkness, free e-book
The Dream-Hunter
Devil May Cry
Upon the Midnight Clear
Dream Chaser
Acheron
One Silent Night
Dream Warrior
Bad Moon Rising

Katherine Kurtz and Deborah Turner Harris
The Adept Series (completed)
The Adept
The Adept: Lodge of the Lynx
The Adept: The Templar Treasure
Dagger Magic
Death of the Adept

Diana Gabaldon
Outlander
Dragonfly In Amber
Voyageur
Drums of Autumn
The Fiery Cross
Breath of Snow And Ashes
An Echo In The Bone

Tanya Huff
Blood Ties One
Blood Ties Two
Blood Ties Three

Tamora Pierce
The Immortals
Wild Magic
Wolfspeaker
Emperor Mage
The Realm Of The Gods

Protector of the Small
The First Test
Page
Squire
Lady Knight

Trickster's Choice
Trickster's Queen

Becka Cooper
Terrier
Bloodhound

S. M. Stirling
The Change
Dies The Fire
The Protector's War
A Meeting At Corvallis
The Sunrise Lands
Scourge Of God
Sword Of The Lady

The Nantucket Trilogy
Island In The Sea Of Time
Against The Tide Of Years
On The Ocean Of Eternity

Marion Zimmer Bradley
Darkover (Out of reading order, I'll admit)
Darkover Landfall
Two To Conquer
The Bloody Sun
The Winds of Darkover
Star Of Danger
The Spell Sword
The Forbidden Tower
The Shattered Chain
Thendara House
City Of Sorcery
Stormqueen!
Hawkmistress!
The Heritage Of Hastur
Sharra's Exile
The Fall of Neskaya (With Deborah J. Ross)
Zandru's Forge (With Debroah J. Ross)
A Flame In Hali (With Deborah J. Ross)
Exile's Song
The Shadow Matrix
Traitor's Sun
The Alton Gift (With Deborah J. Ross)
The Hastur Lord (With Deborah J. Ross)

David Weber
Honor Harrington
On Basilisk Station
The Honor Of The Queen
The Short Victorious War
Field Of Dishonor
Flag In Exile
Honor Among Enemies
In Enemy Hands
Echoes Of Honor
Ashes Of Victory
War Of Honor
At All Costs

A Beautiful Friendship

Anthologies
More Than Honor
Worlds Of Honor
Changer Of Worlds
The Service Of The Sword
In Fire Forged

Honorverse
Crown of Slaves (With Eric Flint)
The Shadow Of Saganami
Storm From The Shadows
Torch Of Freedom (With Eric Flint)

Safehold
Off Armageddon Reef
By Schism Rent Asunder
By Heresies Distressed

Naomi Novik
Temeraire
His Majesty's Dragon
Throne Of Jade
Black Powder War
Empire Of Ivory
Victory Of Eagles

Anne Bishop
The Black Jewels
The Invisible Ring
Daughter Of The Blood
Heir To The Shadows
Queen Of The Darkness
Dreams Made Flesh
Tangled Webs
The Shadow Queen
Shalador's Lady 
Twilight's Dawn

Patricia Briggs
Mercy Thompson
Moon Called
Blood Bound
Iron Kissed
Bone Crossed
Silver Borne 
River Marked

Alpha And Omega
Cry Wolf
Hunting Ground

J.R. Ward
The Black Dagger Brotherhood
Dark Lover
Lover Eternal
Lover Awakened
Lover Revealed
Lover Unbound
Lover Enshrined
Lover Avenged
Lover Mine 
Lover Unleashed

Anna Elliott
The Avalon Trilogy
Twilight of Avalon
Dark Moon Of Avalon
Sunrise Of Avalon