They speak about 1% rule: only 1% of user generate the content in Web 2.0. But what are the true numbers?
Mc Kinsey has recently aired a study on the topic.
Source: Mc Kinsey
The study shows that in fact 2% of Wikipedia User create 60 % of content. About 4% of Youtube und SecondLife user generate more than 90 % of content. The fat 10% of del.icio.us user generate 60 % of its content. That comes closer to the 80-20 rule (Pareto principle). Robert Basic makes a conclusion that in fact the percentage of user generated content of one site grows with the time.
What motivates people to contribute for free? (more…)