From Jim Shultz of the Democracy Center, in Rio:
Sadly you aren't missing much in Rio. Forty miles separate the social movement venue and the power venue and as a result the social venue seems like a bit of a holding tank for the self-marginalized. I don't think the action is at these events anyway; it is in national and local campaigns.
I doubt that either the UN outcome documents or the People's Assembly declarations will have much of an impact on reality. The debate, however, worth watching is about Green Economics and what it actually ought to mean. Here is a brief piece I published at AlterNet just before I arrived, based on my work leading here with the social movements and the UN.