For the past several days, there has been a discussion going on in Indy Israel about ISM ideology and tactics, justifications for the 'Security Barrier', questioning whether property destruction is non-violence, etc. The discussants include members of ISM, Zionist Left and non-Zionist Israelis, and Zionist Right.
The amazing thing is that the discussion has for the most part been comparatively intelligent and informative. I reccomend reading it for a generally accurate picture of the ideology/logic of the various sides, plus the ISM member's defense of the organization is quite eloquent and compelling (imho):
http://www.indymedia.org.il/imc/webcast/display.php3?article_id=62858
http://www.indymedia.org.il/imc/webcast/display.php3?article_id=62758
http://www.indymedia.org.il/imc/webcast/display.php3?article_id=62714
Bryan