Well, the huge billboards of São Paulo may still be blank, free of any imagery due to last year’s “clean city” legislation. But the streets themselves are a different story. Check it out: for at least a year, a few enterprising young artists who post under the Fotolog name 6emeialocal exhibition of their work has been extended through September. Congratulations to them! have been beautifying the city’s storm sewer openings with their cute and clever cartoon paintings. And a