MarketingSherpa is required reading for anyone doing eCommerce web sites. The latest newsletter has a case study on celebrity branded apparel and lifestyle sites. If you sell anything online, there are some great tips in here. (free access until July 15).
However, I'm shocked to read that the manager for sites such as Jennifer Lopez' ShopJLo.com says that site gets only 2% of traffic from search engines. That's way too low...