If you haven’t checked out Fish Publishing’s “Links” page, do – there are lots of interesting and useful links here.
http://www.fishpublishing.com/links.php
A lovely link for short story writers, readers and advocates is
http://www.booktrust.org.uk/books-and-reading/short-stories/
There’s an extensive list of short story competitions, high-quality short stories to read, writing tips, and lots of other goodies.
If you find useful sites you think others might not be aware of, please feel free to put them in a Comment and/or let me know so I can post them.
Fiction Craft 