"My name is Lyra Heartstrings, and you will not remember me. You won't even remember this conversation. Just like with everypony else I've ever met, everything I do or say will be forgotten. Every letter I've written will appear blank; every piece of evidence I've left behind will end up missing. I'm stuck here in Ponyville because of the same curse that has made me so forgettable. Still, that doesn't stop me from doing the one thing that I love: making music. If my melodies find their way into your heart, then there is still hope for me. If I can't prove that I exist, I can at least prove that my love for each and every one of you exists. Please, listen to my story, my symphony, for it is me."

Cover pic by Spotlight: askspotlight.tumblr.com

Celestia wakes up in human form and at an insane asylum where similarities between the world she is in now and the world of Equestria cause her to wonder if Equestria even exists or if she simply made it up to escape her human life. Does she try to hold on to her memories of her Canterlot life or does she let them go and accept them as nothing more than stories? Who is she going to trust? Who is she anyway?

This is only the beginning...

TV Tropes Page

Cover Art by blahblahaha123 (with some altering by me.)

Reading by Phantom Brony

Editors:

Csquared08, DarkPheonix, Gweat and Powaful Twixie, HenryAnthonyCourtler, Kaidan, KartalTheWriter,ZeroOmega

Shining Armor and Cadence's spell reveals something completely unexpected as it expels Chrysalis and her changelings out of Canterlot: A secret kept from everypony for several years...

Now with a TV Tropes page! Warning: Will Contain spoilers.

In a world full of magic, mere words can pose a deadly threat. When simply reading a sign can instantly infect the unwary, and cases start to turn up all around Ponyville, Twilight Sparkle casts the only spell she can find that can give her the time she needs to find the cause of the plague. But then she has to figure out how to stop the epidemic... without being able to read.

Editing provided by Spabble
If you like this, try Rainbow Typhoon
Audiobook on YouTube and for download on SoundCloud
Spanish version translated by MIkimoco
Russian version

After repeatedly being excluded and left behind from the Mane 6's adventures, only to do his chores at the library, Spike begins to feel bitter about his role as Twilight's assistant.

But upon seeing a shooting star one fateful night, he makes a wish that turns his life upside down.

The results of this wish will force Spike to discover the true meaning of purposes in life, friendship and most importantly, being wary of what you wish for.

Cover art made by SStwins! http://sstwins.deviantart.com/

Look at this fan art done by X9ss! http://x9ss.deviantart.com/#/d52r1xi

SF (canon species only; no humans) Ponies were magically and genetically engineered to be the perfect servitor race. They are powerful, adaptable, intelligent and completely under the control of their creators. A laboratory accident frees one such pony from her mental chains, but how can one mare save herself and the rest of her kind if she doesn't even know she's a slave?
This is not the Equestria you know and these are not your little ponies... not yet, anyway.

Tags: Adventure, Diamond Dogs, Gryphons, NO HUMANS (did I mention that already?)
Other tags: historical, mind control, Clarke's 3rd Law, excessive use of high energy physics, before they were famous.
Detailed review by PaulAsaran.
Cover art by endrome , used with permission.
Russian translation (partial -- 'unofficially' completed in the comments)
A Soot-Covered World, book 1.

Twist is a complex filly with simple needs. When circumstance prevents her from fulfilling her desires, things can get quite chaotic for everypony around her.

A tale of rivalry, thirst, and shameless corporate tie-ins.

CURRENTLY PUBLISHING PHYSICAL COPIES, UNTIL THE 25th OF SEPTEMBER: http://igg.me/at/InnerGloryFinalFund

After doing some research into the history of Alicorns, Twilight finds a dead end. When she chooses to pursue it against Celestia's wishes, she finds herself entangled in a messy history that some want forgotten. An Alicorn's position comes with sacrifice. And when given power, one will always be in want of more...

A complicated explanation for the history and intricacies of the My Little Pony universe. If you're reading this, be ready for the long haul.

A rewrite, or rather, the heavily revised and actually worth reading version of The Struggle for Power, my earlier work. Think of that as an alpha build, and this as the "released-to-the-public" program.
http://www.equestriadaily.com/2011/05/story-struggle-for-power.html

You'd think life would be all caviar and high society luncheons if you were born into Equestria's wealthy elite. But that might not be the case if you also grew up in Ponyville, if your parents named you "Filthy," and if you had a grandfather who had some very odd notions about how rich ponies are supposed to behave.

This is a story about growing up in the time of Applejack's parents' generation. It's also about the Apple and Rich families, what happened with them, and why Diamond Tiara is such a mean little filly—especially to Apple Bloom. But mostly, this story is about learning to be rich, trying to truly love and be loved, and whether it's really possible to have both in this different take on Ponyville's richest citizen.

Cover art by the illustrious Wolf Gibbson.

Persuaded by Pinkie Pie to loosen up, Twilight Sparkle uncharacteristically deviates from her routine and finds a street that does not exist on any map, a street that should not be there. Down this road is both a threat, and an answer, one that may help us all reconcile the troubling inconsistencies between Season One, and all subsequent seasons of MLP:FIM.

♥ As Featured On Equestria Daily!