Sometimes you just need to forget about how and why things work the way they've always worked. Innovation might be the result, and Etsy is a nice example. A quote from the article (Yuri, do you have a link to the full article?):
"What is interesting about Etsy is the way Robert Kalin and his three co-founders have introduced some new ideas to the way shoppers can look for things. Don't know what you're looking for exactly, but know what color you're after? Move your mouse over a "Shop by Color" grid and see dozens of bubbles of color float under the cursor. Click on a color you like and small boxes will appear, each one a different product that matches your chosen color. Click on the box you like the look of and details of the product will pop up including price tag, the retailer in question, and a link where you can get more information. It isn't a revolution, but it's different -- and an improvement on bricks and mortar. Ever tried saying to a shop assistant "I don't know exactly what I'm looking for, but please line up all the products that are this shade of turquoise?" Expect a blank look at best, a surly brushoff, or a "We're closing now. Bye!"