How good is your library's Website? Unless you're the librarian who set them up, online library services can be hard to navigate. In fact, many users give up in frustration without ever finding what they're looking for. Nowadays, many of the search and retrieval services that previously were database-driven are now Web-based and part of the library's official Website. So as libraries increasingly use the Web to deliver both in-house and remote services online, it is critical that their sites are engaging, easy to navigate, and created with the end user - the library customer - in mind. This soup to nuts guide will help beginners and experts alike to determine, in a systematic way, how well their Websites are performing for their customers. Applying the best practices of usability testing, you will learn how to gauge