As the original author of some of the referenced articles I should express an opinion I originally wrote them because I had material at hand that I couldn t find on Wikipedia Each article provides a different perspective on relate ideas I have no problem with aggregating not integrating the articles under a broader heading However I would push to maintain a distinction between information and knowledge The former when produced is a final valued product whereas there is no such thing for knowledge Although both can be traded in either transactional or sequential markets only knowledge can be changed in a meaningful way with each transaction Further we use Web 1 0 group sites for exchanging information and Web 2 0 social networking sites for jointly creating knowledge In my mind these are major distinctions that fundamentally alter the way that the two forms of content behave in market economic contexts The challenge then is to clearly distinguish between the two forms of content from economic and other perspectives