Weddings don't come cheap. Why not spend the money, Katie Fewings figured, on responsibly made products? Her 2005 nuptials in England featured fair-trade wine and a gown made locally of organic poplin. To help others find sweatshop-free dressmakers and eco-florists, she and her husband launched Ethicalweddings.com, which now draws 10,000 unique visitors a month.