Here's how it works. If you have an offer or a want, just post the information to the SLA-ILINFO discussion list with the title(s) of the source, your contact information, and whether postage is required. Interested parties will then phone, e-mail or fax you to arrange delivery; it's your choice of communication. If no one calls after five days, your task is complete and you can finish those other ten million projects on your desk. An added feature of an electronic Duplicate Exchange is the ability to post a want ad if you are looking for a particular item. Please do not limit your offerings or ads to books only; submit requests to find missing issues of a journal or to discard issues also.