As soon as Heidi Zak studied the numbers, she knew it was time to sell a bigger bra. Zak, a founder of the online start-up Third Love, has spent three years building the line. The company now offers ...

''I want to help women find clothes, because the brands are just doing such a bad job!'' Natalie Angel was trying to sell some of her clothes in a Facebook “buy, swap and sell” group when she stumbled ...