From Lauren Indvik at Mashabole: Pinterest, a two-year-old social bookmarking site that lets users collect and share things they like on the web, is driving increasingly significant amounts of traffic to retailers’ websites. The service enables users to create online bulletin boards, or “pinboards,” for popular categories such as home decor, food and wedding inspiration. Members can use Pinterest’s “Pin It” bookmarklet tool and iPhone app to save things they see online and offline, and explore and repin the images their friends collect via their personal newsfeeds. The website is especially popular among women, who account for 58% of Pinterest’s traffic, according to Experian Hitwise. · Go to Pinterest becomes top traffic driver for retailers →