Social bookmarking sites capitalize on the principle of the wisdom of crowds when deciding what content to promote to the sites’ front-pages. What happens as these sites start to mature is that a group of prolific community members rise above the rest of the community. Once a select group begins to be considered ‘better’ than the rest, sites relying on socially driven content run into the information cascade problem and the wisdom of crowds doesn’t work anymore.
The Japanese discussion board 2ch.net may have the answer.
