NYC "Black Pages"-a directory of anarcho projects in the area. You might be able to find a copy at May Day or someone who knows where to get one. Since there is a very limited number circulating a good idea would be to return it once your done checking it out.
stuff I pulled from crimethinc.net and google:
Down the street from May Day Books at 165 1st Ave. is a health food store by the name of "Commodities East". Anon on crimethinc.net travel section says check their "dumpster around 10 o'clock" (PM), 3:30 or 4 on Sundays, other health food stores and their locations in the 10003 zip code
C-Squat, aka "squat nazis" at 155 Avenue C, between 8th & 9th
ABC No Rio, 156 Rivington St., starts cooking for food not bombs at 1PM, and serves at Thompons Square
Park around 3:30PM on Fridays and Sundays.