Here's a quick note that I've added LCCN and OCLC number support to ThingISBN. Post: http://www.librarything.com/thingology/2008/02/thingisbn-adds-lccns-oclc-numbers.php I'm also trying to make a list of projects using ThingISBN. If your project is one of them, drop something at: http://www.librarything.com/wiki/index.php/Projects_currently_using_ThingISBN Tim -- Check out my library at http://www.librarything.com/profile/timspalding