In July, 2013 I published an article (in Portuguese) in Java Magazine #116, sobre o HTML 5 as an alternative for development exclusively based on the server-side. This technology introduces and standardizes many innovative features on the browser or mobile device, in a safe, portable and native way.
Article What do I need to know about HTML 5? - DevMedia
When is the subject useful
This subject is useful for Java developers which want to learn how to bring the desktop experience to web applications, reducing the response and navigation time, working without depending on any plugin and having just one client-side codebase independent of device and platform.