Rabbi Greene recommended starting with the following readings:
Daniel Sokatch, Can We Talk About Israel?: A Guide for the Curious, Confused, and Conflicted
Yossi Klein Halevi, Letters to My Palestinian Neighbor
Noa Tishby, Israel: A Simple Guide to the Most Misunderstood Country on Earth
Sarah Tuttle Singer, Jerusalem, Drawn and Quartered: One Woman's Year in the Heart of the Christian, Muslim, Armenian, and Jewish Quarters of Old Jerusalem
For more reading recommendations, including articles and organizations to follow, see his full list of suggestions at the following link.
ISRAEL RESOURCES