Here is a collection of links I find interesting.  Most are to authors I find enjoyable; in fact, they were what got me into writing my own stories.

Frank McCoy's Home Page
The first real collection I came across and the first full one.  I discovered Frank a good few years ago, and found a lot of stories that were at least mostly in-line with some of my own fantasies.

Phil Phantom's Original Collection
A collection of darker stories, and the second collection I found that I actually really liked.

Sadistic Daddy
Pretty much what you'd expect from the name, but he really gets into the heads of the characters, and is wonderfully descriptive without spending forty paragraphs on the nature of the color "green".  I've had the fortune to chat with him via e-mail, and he's a damn fine chap.

Stories On-Line
Stories On-Line seems to be a good resource for any and all stories.  I might see about putting a mirror over there at some point, though it's not quite as user-friendly as ASSTR's near-WYSIWYG interface.