WebGL? Web Workers? It's astonishing how out of touch the cynics in this post are with modern web technologies.

These aren't exactly things that seem to have taken the web by storm as of yet. Maybe in 3 years.

Modern doesn't mean "in use". I haven't seen much more than proof of concepts and demos when it comes to those technologies. Feel free to point out real-world uses if there are any that could benefit me.