Auto Delete Posts is a plugin written for WordPress that automatically deletes or moves posts after a configurable expiration date. The plugin was written at the request of a WordPress forum member and released to the public.
The plugin has been used by many sites that implement sites to mimic expiring posts like Craigslist.org. It has also been used by sites that post coupon and is part of Recruitpress which allows for a creation of a job posting website with WordPress.