hXXp://groups.yahoo.com/group/lustyville/
This author is still active and makes many fans happy with every new chapter. I really like his work. Have read everything :). Some of the work is very emotional.

hXXp://groups.yahoo.com/group/MaddyA_Stories/
Unfortunately the work isn't continued, but some of the stories are finished. Includes one vampire story (pretty good one)

hXXp://groups.yahoo.com/group/storiesvi/  
This author made some great stories and I wished he finished them, but the perspective doesn't look good. Still there are finished stories, so you can enjoy them. Most of the stories focuses on high-schoolers.

hXXp://groups.yahoo.com/group/DominicLuka/
Unfortunately the work isn't continued. It includes a few authors work. Haven't read all.

Most of these authors don't write stories just for jerking off, many of them involve sex scenes, but there usually is a descent plot. Some even have very dramatic setting. Some deal with people healing from all kind of psychological traumas. I kinda like rising from the ashes theme  :).

Stories are in files section, you need to join the group to read. Of course it is free and you can leave the group when you want.