San Francisco-based social bookmarking site Pinterest announced yesterday that it plans to introduce e-commerce to its platform with “Buyable Pins,” which could go a long way to justify the company’s $11 billion valuation. Pinterest, popular with users for discovering and sharing real world things through a digital scrapbook approach featuring “pinned” items, will allow interested sellers to add “buy” buttons to items they post. The product’s early retail partners include Cole Haan, Ethan Allen, Macy’s, Kate Spade and others. Continue reading Pinterest Adds E-Commerce to Discovery with New Buy Button