ShopingPaths are a new model/generation of product comparison interface. It uses a mix of Ajax and Flash to provide a fast and fluid experience. People mornally refer as a mix of a MacOS + Google Analytics.
At CrispyShop you can instantly visualize 50 products by price, features and popularity.
When you group products by a feature, it is easy to find better products for less $ (the green dots), for example: Group Tvs by Screen Size and find a 40 Sony LCD TV with lower price than a 30 Sony LCD TV.
CrispyShop was not designed to compare softgoods (like shoes or clothes); but it is great to compare products where features/price/brand are important. CrispyShop.com is using Yahoo Shopping API.