The book begins with a few quick chapters to recap Ajax basics and build up a complete development environment, and then moves on to the applications. The seven applications are diverse: an auto-complete application, an Ajax game, a two-way chat application, a webmail client, an RSS aggregator, an online calendaring/scheduling system, and a Flickr-style photo gallery application. Technologies covered include Apache, Ant, Ajax Tags, Struts, Prototype, DWR, Dojo, and more. Overall, this book will save you countless hours of development time, and help further your Java Ajax knowledge!