For a good time I wrote a program called Send It To Me exploiting (uses) xisbn and thingisbn as well as X-Server and SRU: http://mylibrary.library.nd.edu/send/ Given an ISBN number the program will try to find the item in our local catalog and prompt the user for their University ID if it is found. The system would then update a local database and get somebody to actually send the item to the user. "Send it to me!" If the item is not found, then it uses xisbn and thingisbn to generate similar ISBN numbers and search for those locally. Again, if found, it prompts the user for their ID and sets up a delivery mechanism. If all is lost, then the system locates the item in the Library of Congress, and offers the user four choices: 1) ILL, 2) library purchase, 3) user purchase, 4) find similar items and borrow them instead. The whole thing is just a prototype; it demonstrates how libraries could make things easier for students, instructors, and researchers when it comes to acquiring known items from library catalogs. -- Eric Lease Morgan University Libraries of Notre Dame