From an economic development perspective, a few loose observations on this emerging phenomena. Increased networking may decrease the costs of doing transactions (farmer with a cellphone), it is important to understand whether collaboration and 'social huddling' increases the amount of social capital (do we create or destroy trust), whether this increases the resilience of communities (are networks strong enough to help cope in bad times as well or is it only fun when we all ride the wave), and how emerging social networks are complemented with other conditions for the creation of added value (over and above social capital we need financial capital, human resources, natural resources, rule of law etc. etc. for development).
Other ideas? Development 2.0 anyone?