Anyway, the site is a project of a non-profit publisher called The Library of America. You give them your email (yes, just your email... no extra billing information) and every Monday they send you a free story.
The "story" they send could be a short story, poem, essay, etc. I haven't been subscribed very long but it seems like most of the stuff they send are from authors that are now dead (as opposed to contemporary). The selections are never very long and it's kind of a fun way to expand your reading.
Click here to go to their sign up page.