If somebody had asked me 5 years ago, what are the next big web technologies on the horizon ? What would my answer would have been?
AJAX, Flash or perhaps Silverlight ?
Emergence of HTML5: W3C consortium has come up with new standard for HTML which includes advanced functionalities like local storage, audio and video. Since HTML5 is going to be uniquitous standard, it seems it is going to replace technologies like Silverlight and Flash.
CSS3: CSS3 further adds the power to HTML5.