Indexes in ebooks can be ‘active’, with hyperlinks into the text. Should these links go to the page, paragraph, line or word level? This is a complex question, but the main concern may be the user interface in ebook reader applications. In this second article of a three-part series, Mary Coe and Jan Wright report on their investigation of how active ebook indexes are handled by dedicated ereader devices, such as the Kindle ereader, Nook ereader and Kobo ereader. They conclude that dedicated ereader devices are much better at displaying the targeted levels of locators in active ebook indexes than Web-based browser ereader applications (see the first article in this series in The Indexer 37(2), pp. 125–40, for more on Web-based-browser ereader applications).