BookMaid.com used to be RITBook.com. After a legal dispute with the Rochester Institute of Technology, the name was forced to be changed to BookMaid.com. You can read more about the legal dispute here: www.bookmaid.com/legal/
Users submit their books to BookMaid by simply typing in their ISBN number. A buyers opens a transaction with the seller, which gives them both access to each other's contact information. They contact each other and set up a meeting.
A transaction is opened by a user who is interested in buying a book. The user will open a transaction between the seller of the book. This will give both parties access to each other's contact information.