Similar to Yahoo's shop by color application, Dell has just introduced its own shop by color tool that allows you to view various products in a specified color. All you have to do is visit the site, select the best color to express your style (either blue, red, pink, black, green, white, yellow or brown) and choose a product category (from carrying cases, headphones, speakers, keyboards, digital cameras, and more). According to Popgadget, Dell Color is also Mac friendly, offering a wide assortment of items that are both PC and Mac compatible!
Yahoo has just rolled out a new service called 'Shop by Color' where you can search for a specific color of an item. Just go to Yahoo shopping and do a search. As you can see below, I typed in dresses. With the new color box in the left-hand column you can select a color. In this case because I chose purple, all the purple dresses popped up. I also tried it with iPod, and it worked just as well!