Rich Internet Applications (RIA) have made the web more interactive and cool. Apart from the jargon "AJAX" there are many more things to it. The predominantly used tools for making the web richer are: Flash JavaFX Adobe AIR Microsoft's Silverlight etc., Though these tools make the web more powerful there is a bottom-line constraint of installing the plugins. How many time we face this problem of plugin not found?. (Particularly in Linux platform) Qn : So what is the solution? Ans: HTML 5. HTML5 can redefine RIA to a greater extent. HTML5 provides tags for "video" etc. So if your browser can understand HTML5 then no need for any of the above plugins. The major advantages of this approach are: Web would become "open" with respect to RIA. All of the above said plugins are proprietary. We want web to be open. So it is better to use non-proprietary tools. (at least for client side if not all) Being the native code HTML5 would possibly be more opt...