http://www.sierraclub.org/sierra/201107/urban-farms/
[Added note: It's a small world in more ways than one. The (smaller version of this) goat picture caught my eye while scanning the online issue of Sierra. The house behind them is on 66th Ave. in Oakland. (Verified the location using Google Maps.) I rented a room there during my last two years in grad. school (1971-1972). It looks virtually unchanged.]