A tiny 0.16 percent of visits to Google’s top video-sharing site, YouTube, are by users seeking to upload video for others to watch, according to a study of online surfing data by Bill Tancer, an analyst with Web audience measurement firm Hitwise.

Similarly, only two-tenths of one percent of visits to Flickr, a popular photo-editing site owned by Yahoo Inc., are to upload new photos, the Hitwise study found.

The vast majority of visitors are the Internet equivalent of the television generation’s couch potatoes — voyeurs who like to watch rather than create, Tancer’s statistics show.

Wikipedia, the anyone-can-edit online encyclopedia, is the one exception cited in the Hitwise study: 4.6 percent of all visits to Wikipedia pages are to edit entries on the site.

But despite relatively low-user involvement, visits to Web 2.0-style sites have spiked 668 percent in two years, Tancer said.