Wikipedia’s media format policy:
The preferred formats are JPEG for photographic images, SVG for
drawings and line-art illustration, PNG for non-vector graphic
iconic images, Ogg Vorbis for sound and Ogg Theora for video.
So, there’s one major site that uses Ogg. But, I can’t say I recall ever watching video from Wikipedia, so while they’re clearly a major web site, I’m not sure it’s fair to call them a major video publisher.
★ Thursday, 18 March 2010