VOLUNTEERS/NETWORKING:

http://mycommitment.org/ My Commitment - a project of the Clinton Global Initiative

http://www.craigslist.org/ Craigslist

http://www.idealist.org/ Idealist

http://www.meetup.com/ Meet Up - search by zip code

http://greendrinks.org/ Green Drinks International

http://www.projects-abroad.org/ Projects Abroad

http://www.dosomething.org/ Do Something - places to volunteer, grants

 

NON-PROFITS:
1sky/ hollywood based initiative for jobs and clean energy
environmental defense fund
Peace Brigades International: PBI/ human rights witnesses
Seedco—Job Training, Benefits Access, Business Assistance, Loans & Grants
Aura's House/ direct action projects.  VERY TRANSPARENT and inclusive
pronatura

INTERNET ACTIVISM:
ripple/donate by looking at an ad
FreeRice/ Give free rice to hungry people by playing a simple word game.
dotherightthing.com » Popular Stories/ business watch
Protest.Net: A calendar of protest, meetings, and conferences.
Change.org/ learn about and connect to causes to take action
Kiva.org - Loans that change lives/ micro-loans to entrepreneurs in the developing world for as little as $25