It's perferable to post the story itself if you're interested in getting feedback. Posting only links is a general no-go. If you decide to link to your stories elsewhere please include some text in your post with the link(s), e.g. a short synopsis and/or teaser or something like that.
Non-Trek fan fic is allowed here but there shouldn't be more than three of them on the front page of the forum. Please take that into consideration before you post it here. Alternatively, you could also link to them in your signature.