title: New features introduced with HTML5
body: <p>I haven't used HTML5 possibilities in my web applications because of browsers' poor support, but situation seems to become much better so I became really interested in its new cool features (even though many of them are only in a draft state today).<br><br>
  I already know about cool Web Sockets, WebGL and Canvas (with this stuff I can finally get rid of Flash!)<br><br>
  What are the new things in HTML5 that I should be aware of? (I mean new ways of web-programing not the particular tags) (the question was inspired by Google IO)</p>