cerebrum - 9:16 pm on Jan 9, 2006 (gmt 0)
Amazon followed Nielsen principles long back and became No.1 e-commerce site on Internet. Page usability matters a lot. Right now we cant ignore Seaarch Engines as they became gateways to Internet. But if you want to become No.1 in e-commerce, then you must follow Nielsen principles (+SEO ofcourse).