JFTR, I am not entirely comfortable with this letter. It's nebulous, full of vacuous exhortations about extending freedom and autonomy and the need for direct action, but risibly short on specifics. And the take-it-from-me-darling tone is patronizing/condescending and hence unanarchistic. Nevertheless, the gist is correct. So here it is.
http://thetrialbyfire.org/2011/10/10/dear-occupiers-a-letter-from-anarchists/