social software trends

I got this from the summary of the Future of Web Apps Conference' 

1. User generated content and social software trends
   This is a bit of a catchall, but I’d like to list what has been working and not working in the user generated content space.
   1. Not working:
      1. Requiring participation from square 1. Not all users need to participate to generate social value.
      2. Buying communities.
      3. Social networks for the sake of social networks.
      4. Wikipedia consensus model (many people contribute to one idea for the greater good) is not a good model in general and probably cannot be duplicated outside Wikipedia.
   2. Working:
      1. Giving users control, being open to different uses you did not anticipate.
      2. Dunbar principle – segments of under 150 people.
      3. The individual should get value and the organization should derive aggregated value from all the individuals.
      4. Social sites have and need different types of users and each should be motivated/rewarded equally.
      5. Many voices generate emergent order: you can get much value out of all that data.