TerraCycle - first mass-produced consumer product to have a negative environmental footprint
galai.typepad.com
Their product is driven by passion to be eco-friendly, not by passion to gain some PR points or appeal to amateur tree-hugger shoppers. Their whole product, end-to-end, is truly eco-friendly. The full story is on their website, but I'll just point out one feature that I LOVED - their amazing packaging: