Here’s my toons, their specs and what resources I used on respeccing them or guides I found for them. Note: Not all my toons are respecced yet. I’ve been bookmarking resources for all the classes for the last few days. I thought I’d throw it up and make it an all classes resource lol.
Jaded Alt has a survival guide of many specs and classes collected.
Askevar [Death Knight]- Blood tank / Frost Dual Wield DPS; Some DPS simulations with various specs/ Unholy
Askalaphos [Hunter] – Marksmanship/Beast Mastery/Beast Mastery/Survival
Alika [paladin] – Protection**/Retribution/Holy
Carlyn* [warlock] – created spec myself – Demonology
Aulao [mage] – Fire/Arcane
Tsali [shaman] – Enhancement/Resto
Arica [druid] – Feral Kitty/Feral Bear/Resto/Resource List for All Specs
Kintara [priest] – Discipline/Priest Glyphing/Shadow Priest
Kalliana [rogue] – Mutilate Build; Combat Build; Combat Rotation; Resource post for all three specs
Odyyn [warrior] – Protection/More Prot Resources/Fury/Arms
Askevar 2 [Death Knight]- Frost Dual Wield DPS
*Carlyn has only ever been Demonology. Here are some resources for Affliction and Affliction and Destruction.
**Ferocious Inspiration has many posts for prot pallies including spec, glyphing, and rotation
You Yank It, You Tank it: Blog of a Tanking Death Knight Lady 
Hey! Thanks for the link. I messed up that spec a bit due to lack of sleep/reading talents, so check back now for an updated version.
No matter what I do, I just can’t get into playing a frost DK. I’m so comfortable with my unholy build…which personally works better for me. Alas. You have a very nice blog.
Thanks! If you’ve been playing Unholy for a while, Frost can take some getting used to. I enjoy both, though.