Accessible on ShopWiki's search results page, the Search by Color tool displays more than 50,000 RGB colors for shoppers to choose from. A shopper looking for a turquoise v-neck shirt, for example, can search "women's v-neck" then select the desired shade from the color tool. Once selected, the search results are instantly updated to list those shirts available in the chosen hue.
You have to play around with Shop by Color to really understand the power of this feature.
Expect to see more innovative features like this out of Shopwiki soon. Read my ComparisonEngines.com post to put this new feature in perspective.