It doesn't matter how many of these organizations there are they are unelected and unless the have Knesset seats they have no power. As much as the left dream about it Israel won't be having any revolutions. Israeli Labor Movement has no more power an influence that Peace Now or J Street. In the Knesset the left is weaker than they have been in over a decade and there is nothing that hints that will turn around anytime soon, just the opposite because the polls all have been showing the next election Likud & Yisrael Beitanu will increase the number of seats so where is the left wing revolution?
from the article: Left can unite to lead Israel once again