The blog of Cambrian House, a crowdsourcing / crowdfunding project, has a very interesting tidbit.

The figures come from Bill Tancer of Hitwise, who “shared some hard numbers on how much participation is actually occurring at some of the most popular web 2.0 sites.�

* YouTube – 0.16% (visits to upload video)
* Flickr – 0.2% (visits to upload photos)
* Wikipedia – 4.59% (visits to edit pages)

And thinking that Time called YOU (the internaut) person of the year … I suspect they refered to the single sense of ‘you’, instead of the plural one.