Robert Swartwood has posted a notice that he will be hosting a fourth Hint Fiction Contest this year. Hint fiction is "25 words for fewer that suggests a larger more complex story". The contest opens on April 1 and ends April 30. Submissions will be at Mr. Swartwood's website so you'll have to check back on April 1 when the contests opens. There is no fee to enter and prizes are $100, $50, and $25 plus other gifts.
UPDATE: April 1 - Here's the link with full guidelines and submission form.