YouTube videos now available in HTML5: Good riddance, FlashWe haven't exactly been secretive about our distaste for Adobe's Flash Player here at TUAW. Flash on the Mac has traditionally been a terrible resource hog, and while the pre-release of Flash Player 10.1 alleviated (to an extent) Flash's inordinately high CPU usage, many of us still dreamed of a golden age when Flash would be supplanted by something else, especially if that something else was HTML5.
Its no big secret that Flash is a load of shite and can be a resource hog, I personally use Click To Flash for Mac whic has an option to automatically load vids in H.264 instead of Flash. If your browsers supported you can opt in to the BETA for using HTML5 instead of Flash
YouTube - Broadcast Yourself in HTML5