Nielsen//NetRatings announced today that 11 percent of Weblog readers, blog site visitors who claim to read blogs regularly or occasionally, use RSS (Really Simple Syndication) to sort through the increasing number of blogs available. According to Nielsen//NetRatings’ “Understanding the Blogosphere” survey, nearly five percent of blog readers use feed aggregation software and more than six percent use a feed aggregating Web site to monitor RSS feeds from blogs.

“While RSS is an established technology, the growing popularity of blogs has catapulted RSS into the spotlight as a content personalization tool,” said Jon Gibs, senior research manager, Nielsen//NetRatings.