Torquere Press - very hot, very sweet romance. Everyone deserves a happy ending.
The Felliverse. The lovely Syd McGinley's creation.
Dianne Fox and Anah Crow - both on their own and writing together.
Jourdan Lane. I never understood what this whole vampire hype was about. I do now.
BA Tortuga. Same about cowboys.
Chris Owen and Jodi Payne. Their Deviations series is a classic.
Jay Lygon. The Chaos Magic books are just so different - and well written.
Sean Michael. So many (especially BDSM-related) goodies to be found among her books.
Laney Cairo. I absolutely love her One Way Street.
Kate Sherwood. Horses, angst, and lovely men.
Mr. S. Leather. Strictly for research. Yes.

There are lots and lots of good - and free - stuff out there. Here's some of my favorite places to find good stories. And yes, some of them are kinky.
Noel Blue Stories. Very sweet - and well written.
Tutoring Jerry. THE classic online story. Be warned: It is both addictive and unfinished.
Story of Tol. Very harsh story, but strangely compelling. I really don't know why.
At his Throat. Another story on Nifty that I've been following recently. 
The Administration by Manna Francis. I'm very much in love with her sociopathic main character.
Sadie Rose. She's not always kind to her characters - and that makes her stories all the more haunting.
Literotica and Nifty in general. Here you find everything from hardcore porn to very well written romance. Use the Top Lists or Best of sections if you want help to find the gems.