Abstract

The explosive growth of blogs, wikis, social networking sites, and other online communities has transformed the Web in recent years. The mainstream media has taken notice of the so-called Web 2.0 revolution-stories abound about events such as Facebook's huge valuation and trends like the growing Hulu-YouTube rivalry and Flickr's role in the current digital camera sales boom. However, a new set of technologies is emerging in the background, and even the Web 2.0 crowd is starting to take notice.

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community