We were positively surprised to find a session about zk being offered in the conference schedule of the Ajax in Action this year. As there was a slight touch to "JS-only" frameworks within the conference, people were really happy to listen to Daniel Seiler from processwide who offered a nice session about zk. He demonstrated that Ajax frameworks can cover much more than the client part of an application, unfortunately there is no video cut for this session. But we decided to put his slides here, so anyone interested in giving a quick summary to his boss about when and why to use zk can refer to the slides...