Short version:

My questions are stuff like:
-What kind of methods, like Ajax or Flash, will be used more in the future for community sites(read: CB)?
-Due to the enourmous grow in social networks and mega-networks like MySpace and Facebook, how can the little ones survive and grow?
-Is it neccesairy to work together with/embed other services, like YouTube, or don't we even have a choice?
-Is the concept of a community site already outdated?
-Is the concept of a community site only a tool, just like Barack Obama turned a part of his political website into a community just to promote his campain?
Please use existing examples to support your arguments.

I hope this is a better explanation, the other was kind off vague