I previously served on the Board of Witness for Peace Southeast, a non-profit that seeks to educate and create change around U.S. policies in Latin America: www.wfpse.org
I am also a supporter of the local Prison Books Collective, which sends books to incarcerated individuals in North Carolina and Alabama: www.prisonbooks.info
Some other sites I like:
For a much needed anti-dote to corporate media: democracynow.org
All things feminist: http://thefeministwire.com/
Dr. Jen Ho: www.mixedraceamerica.com
Be sure also to check out the wonderful website and blog of Nina Serrano. Her 1979 film Despúes del Terremoto (co-written and produced with Lourdes Portillo) is analyzed in my forthcoming book: ninaserrano.com