http://www.beet.tv/2009/07/dailymotion-leads-the-industry-with-ogg-theora-implemetation.html
Now that Firefox 3.5 has been released, we will be seeing new sorts of programs for video including Ogg Theora, the open-source, non-Flash program for video. DailyMotion, the big Paris-based video sharing site, has created a pilot to encode a several thousand clips into the format as part of an experiment. Users need the new Firefox 3.5 to view the clips.
Andy Plesser, Executive Producer