Lt. Dusk Skyshine, fighter-bomber pilot, and the crucial attack on the Bridges at To-ki-rin that helped stop the final Nork offensive.

Ponies! Glory! Battle! Death! Exploding airplanes! A mash-up of MLP G2 and James A. Michener!

Takes place in the Age of Wonders, 1956 YOM, roughly 4070 years before Luna's return from the Moon.

This story is a sequel to Advance Warning

Late Season 3. Twilight Sparkle is moon-gazing, when she receives an unexpected visit from Princess Luna. The dark Princess tells Twilight of the Moon, and a long-forgotten tale of the Age of Wonders ... and how the ponies of that time achieved greatness, yet ultimately failed of their true promise. Inspired by the PonyPOV fanon.

Now has a TVTropes page here.

This story is a sequel to A Meeting by Moonlight

Late Season 3, immediately after A Meeting by Moonlight.

After her emotional revelations to Twilight Sparkle, Princess Luna returns to Canterlot uncertain of her feelings, her place in the world, and even her identity. Does she love Twilight Sparkle as a friend, or want her as a lover? Does Luna, herself, really have any place in a world that has changed again and again out of all recognition during her long life in this incarnation alone, let alone compared to the Age of Wonders?

Is she Princess Luna? Nightmare Moon? Moondreamer? The pitiless Cosmic Principle, to whom little ponies are nothing more than worms crawling the face of an unimportant speck in spacetime? Who is she really, and what does she really want?

Her big sister tries to help her feel a bit less adrift.

This story is a sequel to Nightmares Are Tragic

June 28th, YOH 1500, exactly one week after Luna's Return, set on the eastern continent of Taura.

For centuries the Speakers of the Running Water, a small nation of Ponies dwelling in the Bloody Mountains of southeastern Taura, have been dominated by the Griffon Empire. But now young First Strong Messenger prepares to strike a heroic blow against his nation's oppressors. Come, watch his thrilling struggle against foreign domination, as he makes his mark on history!

WARNING: Note the tags and content.

Late Season 4: November 1504 (almost 4 1/2 years after Luna's Return, after "Equestria Games" but before Twilight's Kingdom).

Discord comes to visit Fluttershy and discovers that she is not alone. The furious God of Chaos considers what to do next. The traditional solution suggests itself, but maybe this would be unwise?

Perhaps he should consult someone wise? Someone he always keeps very close to him? Someone who always gives him good counsel, even if she's just a little bit miffed about that whole silly annihilation of her homeland and murder of her whole family and usurpation of her physical form thing, even though that was over twenty-five hundred years ago?

He fears she still has a grudge against him for all of this. Ponies so often take minor matters of this sort way too seriously ...

There's no other way! He must consult his inner Voice of Reason ...

Hope she's not still too mad at him ...

This story is a sequel to Nightmares Are Tragic

The story of Pinkie Pie's origin, the days that changed her life forever, and what she did about it. Explores her motivations and decision-making processes, and what she uses instead of mere mundane logic to achieve her unusual ends.

This story is a sequel to An Extended Performance

Having fled Manehattan after first saving the city and then wrecking Bottom Billing's office, the Great and Powerful Trixie attempts to make her way alone on the open road, building up her reputation and making contacts. She hopes to be able to one day return to Baltimare (and perhaps one special somepony) as a success in her own right. But a combination of bad luck, old enemies and her own unique personality seem to thwart her at every twist and turn. Can Trixie surmount fate and achieve fame by her own efforts? Or will her journey end in humiliating failure?

Has its own TV Tropes page.

A direct sequel to An Extended Performance and (to a lesser degree) of A Long Night at the Hippodrome. Takes place roughly from Season 1, from Episodes 3 "Ticket Masters" to 7 "Dragonshy," (June 25th to Late September, YOH 1500).

This story is a sequel to Dragonshyness

September 9th-10th, YOH 1500 - same time as S1E08 "Look Before You Sleep" -- almost three months after Luna's Return

When Spike is summoned to Canterlot, he expects an assignment from Princess Celestia. Instead, he finds himself meeting with the Moon Princess to learn to synchronize his magic flame with her own field so that he can send and receive scrolls from her as well. This is no problem, but then he finds himself reclining on an old-style North-Realm couch having a long conversation with Princess Luna asking him all about his adventures with Twilight Sparkle and being fed a bowl full of gems. Will Spike get a stomach ache?

Sometimes, it's very tough to be a young magic Dragon.

How Fuschia Blush and Lavender Lace perceive their friend The Great and Powerful Trixie, and how all three perceive the strange things that go on at Canterlot High School.

This story is a sequel to Love Starved

April, YOH 1515 (by the Equestrian calendar). Fifteen years after Luna's Return, the third and last year of the Great Changeling War.

Theoretical-Infiltrator Compound was the elite of her elite Caste, tasked with predicting the logistics of the war that Queen Hunger planned to wage against the Realm of Equestria. But, when she came up with the wrong answer, she was demoted to a less responsible position. And when her trepidations proved correct, she was sent to the battle-front, to defend Hunger's last Hive against the final Equestrian onslaught!

But does the real threat to the survival of herself, and her friends, come from outside the Hive? Or from within?

ADDENDUM: AU as of Season 6 Finale.