I noticed this in the Announcement section on the first page of AW:

ReadingWriters Flash Fiction Contest
(due May 31, 2007; no entry fee; win $100, publication, and Flash Fiction: Very Short Stories, ed. by James Thomas, Denise Thomas and Tom Hazuka)

The max length is 500 words. Publication will be in their "writing e-zine," The Verb. Here's the link:

http://www.readingwriters.com/contest.htm

Bayou Bill