Fix My Writing!
http://www.fixmywriting.net/ went live last week. Using the same ideas in the Pub & Restaurants field, we set up a simple e-commerce site. This time around, users aren't ordering products so much as ordering "Word Count". Each shopping field is set up in a way that when users submit their documents, they supply the amount of words for "Quantity" and the price adjusts accordingly.
It's a simple, user-friendly, Drupal-based website, with an excellent back-end for easy product perusal & retrieval.
