internet: pragmatics

two relevant articles:
Six degrees of reputation: The use and abuse of online review and recommendation systems, by Shay David and Trevor Pinch, First Monday, volume 11, number 3 (2006)

The Transformation of the Web: How Emerging Communities Shape the Information we Consume, by Josef Kolbitsch and Hermann Maurer, Journal of Universal Computer Science, volume 12, issue 2 (2006)